Remove unused files.

23 files changed, 0 insertions, 12238 deletions

diff --git a/contrib/less/Makefile.aut b/contrib/less/Makefile.aut
deleted file mode 100644
index f702624..0000000
--- a/contrib/less/Makefile.aut
+++ /dev/null
@@ -1,132 +0,0 @@
-# Makefile for authoring less.
-
-EMAIL = bug-less@gnu.org
-HOMEPAGE = http://www.greenwoodsoftware.com/less
-SHELL = /bin/sh
-RCS = rcs
-NROFF = nroff -man
-
-srcdir = .
-
-SRC = \
-	main.c screen.c brac.c ch.c charset.c cmdbuf.c \
-	command.c cvt.c decode.c edit.c filename.c forwback.c \
-	help.c ifile.c input.c jump.c line.c linenum.c \
-	lsystem.c mark.c optfunc.c option.c opttbl.c os.c \
-	output.c pattern.c position.c prompt.c search.c signal.c \
-	tags.c ttyin.c version.c  
-DISTFILES_W = \
-	defines.ds  Makefile.dsb Makefile.dsg Makefile.dsu \
-	defines.o2  Makefile.o2e \
-	defines.o9  Makefile.o9c Makefile.o9u \
-	defines.wn  Makefile.wnm Makefile.wnb
-DISTFILES = \
-	${SRC} regexp.c regexp.h \
-	COPYING INSTALL LICENSE Makefile.in Makefile.aut NEWS README \
-	configure configure.ac lesskey.c lessecho.c scrsize.c \
-	charset.h cmd.h funcs.h lglob.h less.h lesskey.h option.h \
-	pckeys.h pattern.h position.h \
-	install.sh defines.h.in mkinstalldirs \
-	less.nro less.man lesskey.nro lesskey.man lessecho.nro lessecho.man \
-	less.hlp \
-	mkfuncs.awk mkhelp.c \
-	${DISTFILES_W}
-
-all: help.c funcs.h ${srcdir}/configure 
-
-release: .FORCE
-	${MAKE} -f Makefile.aut tagall 
-	${MAKE} -f Makefile.aut all 
-	${MAKE} -f Makefile.aut clean 
-	${MAKE} -f Makefile.aut dist
-
-.FORCE:
-
-help.c: less.hlp mkhelp
-	-mv -f ${srcdir}/help.c ${srcdir}/help.c.old
-	rm -rf help.c
-	./mkhelp < less.hlp > help.c
-	if cmp -s help.c help.c.old; then mv help.c.old help.c; fi
-
-mkhelp: mkhelp.c
-	${CC} -o mkhelp mkhelp.c
-
-${srcdir}/configure: ${srcdir}/configure.ac \
-		${srcdir}/Makefile.in
-	cd ${srcdir}; autoheader; autoconf
-
-funcs.h: ${SRC:%=${srcdir}/%}
-	-mv -f ${srcdir}/funcs.h ${srcdir}/funcs.h.old
-	awk -f ${srcdir}/mkfuncs.awk ${SRC:%=${srcdir}/%} >${srcdir}/funcs.h
-	if cmp -s funcs.h funcs.h.old; then mv funcs.h.old funcs.h; fi
-
-lint:
-	lint -I. ${CPPFLAGS} ${SRC}
-
-clean: 
-	rm -f Makefile config.status config.log config.cache defines.h stamp-h \
-		README NEWS \
-		less.nro less.man lesskey.nro lesskey.man lessecho.nro lessecho.man 
-
-distclean: clean
-realclean: clean
-
-REPLACE_VERSION = \
-	@REL=`sed -e '/char version/!d' -e 's/[^0-9.]*\([0-9.]*\).*/\1/' -e q ${srcdir}/version.c`; \
-	DT=`date '+%d %h %Y'`; \
-	echo "Stuffing version number $$REL into $@"; \
-	sed \
-		-e "s;@@VERSION@@;$$REL;" \
-		-e "s;@@DATE@@;$$DT;" \
-		-e "s;@@EMAIL@@;${EMAIL};" \
-		-e "s;@@HOMEPAGE@@;${HOMEPAGE};" >$@
-
-${srcdir}/README: ${srcdir}/README.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/README.VER
-${srcdir}/NEWS: ${srcdir}/NEWS.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/NEWS.VER
-${srcdir}/less.nro: ${srcdir}/less.nro.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/less.nro.VER
-${srcdir}/lesskey.nro: ${srcdir}/lesskey.nro.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/lesskey.nro.VER
-${srcdir}/lessecho.nro: ${srcdir}/lessecho.nro.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/lessecho.nro.VER
-${srcdir}/less.hlp: ${srcdir}/less.hlp.VER ${srcdir}/version.c
-	${REPLACE_VERSION} ${srcdir}/less.hlp.VER
-
-${srcdir}/less.man: ${srcdir}/less.nro
-	${NROFF} ${srcdir}/less.nro >${srcdir}/less.man
-${srcdir}/lesskey.man: ${srcdir}/lesskey.nro
-	${NROFF} ${srcdir}/lesskey.nro >${srcdir}/lesskey.man
-${srcdir}/lessecho.man: ${srcdir}/lessecho.nro
-	${NROFF} ${srcdir}/lessecho.nro >${srcdir}/lessecho.man
-
-
-distfiles: ${DISTFILES}
-
-dist: ${DISTFILES}
-	if [ ! -d ${srcdir}/release ]; then mkdir ${srcdir}/release; fi
-	@cd ${srcdir}; \
-	REL=`sed -e '/char version/!d' -e 's/[^0-9.]*\([0-9.]*\).*/less-\1/' -e q version.c`; \
-	rm -rf release/$$REL; mkdir release/$$REL; \
-	echo "Preparing $$REL"; \
-	rm -rf $$REL; mkdir $$REL; \
-	for file in ${DISTFILES}; do \
-	  ./add_copyright $$file $$REL; \
-	done; \
-	cd $$REL; chmod +w ${DISTFILES_W}; cd ..; \
-	echo "Creating release/$$REL/$$REL.tar.gz"; \
-	tar -cf - $$REL | gzip -c >release/$$REL/$$REL.tar.gz; \
-	echo "Signing release/$$REL/$$REL.tar.gz"; \
-	gpg --detach-sign release/$$REL/$$REL.tar.gz; \
-	echo "Creating release/$$REL/$$REL.zip"; \
-	zip -rq release/$$REL/$$REL.zip $$REL; \
-	rm -rf $$REL
-
-tagall:
-	@REL=`sed -e '/char version/!d' -e 's/[^0-9.]*\([0-9.]*\).*/v\1/' -e q ${srcdir}/version.c`; \
-	echo "tagging $$REL"; \
-	for f in ${srcdir}/RCS/*,v; do \
-	  REV=`co -p $$f 2>&1 | sed -e '1d' -e '3,$$d' -e 's/revision //'`; \
-	  ${RCS} -N$$REL:$$REV $$f; \
-	done
diff --git a/contrib/less/Makefile.dsb b/contrib/less/Makefile.dsb
deleted file mode 100644
index e45b602..0000000
--- a/contrib/less/Makefile.dsb
+++ /dev/null
@@ -1,51 +0,0 @@
-# Makefile for less.
-# MS-DOS version (Borland C/C++ 4.02)
-
-#### Start of system configuration section. ####
-
-CC = bcc
-LIBDIR = \bc\lib
-
-CFLAGS = -A- -mm -O2 -w- -1- -2- -a -d -Z
-LDFLAGS = -mm
-LIBS =
-EXT = .EXE
-
-#### End of system configuration section. ####
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.obj:
-	$(CC) -c -I. $(CPPFLAGS) $(CFLAGS) $<
-
-OBJ = \
-	main.obj screen.obj brac.obj ch.obj charset.obj cmdbuf.obj \
-	command.obj cvt.obj decode.obj edit.obj filename.obj forwback.obj \
-	help.obj ifile.obj input.obj jump.obj line.obj linenum.obj \
-	lsystem.obj mark.obj optfunc.obj option.obj opttbl.obj os.obj \
-	output.obj pattern.obj position.obj prompt.obj search.obj signal.obj \
-	tags.obj ttyin.obj version.obj
-
-all: less$(EXT) lesskey$(EXT)
-
-# This is really horrible, but the command line is too long for 
-# MS-DOS if we try to link $(OBJ).
-less$(EXT): $(OBJ)
-	ren lesskey.obj lesskey.obo
-	$(CC) $(LDFLAGS) -e$@ *.obj $(LIBS)
-	ren lesskey.obo lesskey.obj
-
-lesskey$(EXT): lesskey.obj version.obj
-	$(CC) $(LDFLAGS) -e$@ lesskey.obj version.obj $(LIBS)
-
-defines.h: defines.ds
-	-del defines.h
-	-copy defines.ds defines.h
-
-$(OBJ): less.h defines.h
-
-clean:
-	-del *.obj 
-	-del less.exe
-	-del lesskey.exe
-
diff --git a/contrib/less/Makefile.dsg b/contrib/less/Makefile.dsg
deleted file mode 100644
index b921b5d..0000000
--- a/contrib/less/Makefile.dsg
+++ /dev/null
@@ -1,92 +0,0 @@
-# Makefile for less under DJGPP v2.0 or later.
-
-#### Start of system configuration section. ####
-
-srcdir = .
-VPATH = .
-
-CC = gcc
-INSTALL = ginstall -c
-INSTALL_PROGRAM = ginstall
-INSTALL_DATA = ginstall -m 644
-AWK = gawk
-
-CFLAGS = -O2 -g
-CFLAGS_COMPILE_ONLY = -c
-#LDFLAGS = -s
-LDFLAGS = -g
-O=o
-
-LIBS =
-prefix = /dev/env/DJDIR
-exec_prefix = ${prefix}
-
-bindir = ${exec_prefix}/bin
-sysconfdir = ${prefix}/etc
-mandir = ${prefix}/man
-manext = 1
-
-#### End of system configuration section. ####
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.o:
-	${CC} -I. ${CFLAGS_COMPILE_ONLY} -DBINDIR=\"${bindir}\" -DSYSDIR=\"${sysconfdir}\" ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.${O} screen.${O} brac.${O} ch.${O} charset.${O} cmdbuf.${O} \
-	command.${O} cvt.${O} decode.${O} edit.${O} filename.${O} forwback.${O} \
-	help.${O} ifile.${O} input.${O} jump.${O} line.${O} linenum.${O} \
-	lsystem.${O} mark.${O} optfunc.${O} option.${O} opttbl.${O} os.${O} \
-	output.${O} pattern.${O} position.${O} prompt.${O} search.${O} signal.${O} \
-	tags.${O} ttyin.${O} version.${O}
-
-all: less lesskey lessecho
-
-less: ${OBJ}
-	${CC} ${LDFLAGS} -o $@ ${OBJ} ${LIBS}
-
-lesskey: lesskey.${O} version.${O}
-	${CC} ${LDFLAGS} -o $@ lesskey.${O} version.${O}
-
-lessecho: lessecho.${O} version.${O}
-	${CC} ${LDFLAGS} -o $@ lessecho.${O} version.${O}
-
-defines.h: defines.ds
-	command.com /c copy $< $@
-
-${OBJ}: ${srcdir}/less.h defines.h ${srcdir}/funcs.h
-
-install: all ${srcdir}/less.man ${srcdir}/lesskey.man
-	${INSTALL_PROGRAM} less.exe ${bindir}/less.exe
-	${INSTALL_PROGRAM} lesskey.exe ${bindir}/lesskey.exe
-	${INSTALL_PROGRAM} lessecho.exe ${bindir}/lessecho.exe
-	${INSTALL_DATA} ${srcdir}/less.man ${mandir}/man${manext}/less.${manext}
-	${INSTALL_DATA} ${srcdir}/lesskey.man ${mandir}/man${manext}/lesskey.${manext}
-
-info:
-install-info:
-dvi:
-check:
-installcheck:
-
-TAGS:
-	etags *.c *.h
-
-newfuncs:
-	command.com /c if exist funcs.h del funcs.h
-	${AWK} -f mkfuncs.awk ${OBJ:.${O}=.c} > funcs.h
-
-clean:
-	command.com /c for %f in (*.${O} less lesskey lessecho *.exe) do if exist %f del %f
-
-mostlyclean: clean
-
-distclean: clean
-	command.com /c if not exist Makefile.dsg ren Makefile Makefile.dsg
-	command.com /c if not exist defines.ds ren defines.h defines.ds
-	command.com /c for %f in (Makefile defines.h) do if exist %f del %f
-
-realclean: distclean
-	command.com /c if exist TAGS del TAGS
-
diff --git a/contrib/less/Makefile.dsu b/contrib/less/Makefile.dsu
deleted file mode 100644
index 40a2538..0000000
--- a/contrib/less/Makefile.dsu
+++ /dev/null
@@ -1,59 +0,0 @@
-# Makefile for less.
-# MS-DOS version
-
-#### Start of system configuration section. ####
-
-CC = cl
-# Change the following directories to match your installation.
-LIBDIR = c:\msvc\lib
-INCDIR = c:\msvc\include
-
-# CFLAGS are compile-time options and LDFLAGS are link-time options. They are
-# customized for MSVC 1.0 (MSC 8.0). If you have a different version of the
-# compiler, you may need to change some of the options to their equivalents.
-# -Ot     optimize for speed
-# -AL     large memory model
-# -Za     ANSI C conformance
-# -nologo suppress MSVC banners
-# -onerror:noexe   no .EXE file if link errors occur
-CFLAGS = -Ot -AL -Za -nologo
-LDFLAGS = -onerror:noexe -nologo
-LIBS = $(LIBDIR)\llibce.lib $(LIBDIR)\graphics.lib
-
-#### End of system configuration section. ####
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.obj:
-	$(CC) -c -I. -I$(INCDIR) $(CPPFLAGS) $(CFLAGS) $<
-
-OBJ = \
-	main.obj screen.obj brac.obj ch.obj charset.obj cmdbuf.obj \
-	command.obj cvt.obj decode.obj edit.obj filename.obj forwback.obj \
-	help.obj ifile.obj input.obj jump.obj line.obj linenum.obj \
-	lsystem.obj mark.obj optfunc.obj option.obj opttbl.obj os.obj \
-	output.obj pattern.obj position.obj prompt.obj search.obj signal.obj \
-	tags.obj  ttyin.obj version.obj
-
-all: less lesskey
-
-# This is really horrible, but the command line is too long for 
-# MS-DOS if we try to link $(OBJ).
-less: $(OBJ)
-	-if exist lesskey.obj del lesskey.obj
-	$(CC) $(LDFLAGS) -o $@ *.obj $(LIBS)
-
-lesskey: lesskey.obj version.obj
-	$(CC) $(LDFLAGS) -o $@ lesskey.obj version.obj $(LIBS)
-
-defines.h: defines.ds
-	-del defines.h
-	-copy defines.ds defines.h
-
-$(OBJ): less.h defines.h
-
-clean:
-	-del *.obj 
-	-del less.exe
-	-del lesskey.exe
-
diff --git a/contrib/less/Makefile.in b/contrib/less/Makefile.in
deleted file mode 100644
index 8c8aed8..0000000
--- a/contrib/less/Makefile.in
+++ /dev/null
@@ -1,122 +0,0 @@
-# Makefile for less.
-
-#### Start of system configuration section. ####
-
-srcdir = @srcdir@
-VPATH = @srcdir@
-
-CC = @CC@
-INSTALL = @INSTALL@
-INSTALL_PROGRAM = @INSTALL_PROGRAM@
-INSTALL_DATA = @INSTALL_DATA@
-
-CFLAGS = @CFLAGS@
-CFLAGS_COMPILE_ONLY = -c
-LDFLAGS = @LDFLAGS@
-CPPFLAGS = @CPPFLAGS@
-EXEEXT = @EXEEXT@
-O=o
-
-LIBS = @LIBS@
-
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-
-# Where the installed binary goes.
-bindir = @bindir@
-binprefix = 
-
-sysconfdir = @sysconfdir@
-datarootdir = @datarootdir@
-
-mandir = @mandir@
-manext = 1
-manprefix = 
-DESTDIR =
-
-#### End of system configuration section. ####
-
-SHELL = /bin/sh
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.o:
-	${CC} -I. ${CFLAGS_COMPILE_ONLY} -DBINDIR=\"${bindir}\" -DSYSDIR=\"${sysconfdir}\" ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.${O} screen.${O} brac.${O} ch.${O} charset.${O} cmdbuf.${O} \
-	command.${O} cvt.${O} decode.${O} edit.${O} filename.${O} forwback.${O} \
-	help.${O} ifile.${O} input.${O} jump.${O} line.${O} linenum.${O} \
-	lsystem.${O} mark.${O} optfunc.${O} option.${O} opttbl.${O} os.${O} \
-	output.${O} pattern.${O} position.${O} prompt.${O} search.${O} signal.${O} \
-	tags.${O} ttyin.${O} version.${O}  @REGEX_O@
-
-all: less$(EXEEXT) lesskey$(EXEEXT) lessecho$(EXEEXT)
-
-less$(EXEEXT): ${OBJ}
-	${CC} ${LDFLAGS} -o $@ ${OBJ} ${LIBS}
-
-lesskey$(EXEEXT): lesskey.${O} version.${O}
-	${CC} ${LDFLAGS} -o $@ lesskey.${O} version.${O}
-
-lessecho$(EXEEXT): lessecho.${O} version.${O}
-	${CC} ${LDFLAGS} -o $@ lessecho.${O} version.${O}
-
-${OBJ}: ${srcdir}/less.h ${srcdir}/funcs.h defines.h 
-
-install: all ${srcdir}/less.nro ${srcdir}/lesskey.nro ${srcdir}/lessecho.nro installdirs
-	${INSTALL_PROGRAM} less$(EXEEXT) ${DESTDIR}${bindir}/${binprefix}less$(EXEEXT)
-	${INSTALL_PROGRAM} lesskey$(EXEEXT) ${DESTDIR}${bindir}/${binprefix}lesskey$(EXEEXT)
-	${INSTALL_PROGRAM} lessecho$(EXEEXT) ${DESTDIR}${bindir}/${binprefix}lessecho$(EXEEXT)
-	${INSTALL_DATA} ${srcdir}/less.nro ${DESTDIR}${mandir}/man${manext}/${manprefix}less.${manext}
-	${INSTALL_DATA} ${srcdir}/lesskey.nro ${DESTDIR}${mandir}/man${manext}/${manprefix}lesskey.${manext}
-	${INSTALL_DATA} ${srcdir}/lessecho.nro ${DESTDIR}${mandir}/man${manext}/${manprefix}lessecho.${manext}
-
-install-strip:
-	${MAKE} INSTALL_PROGRAM='${INSTALL_PROGRAM} -s' install
-
-installdirs: mkinstalldirs
-	${srcdir}/mkinstalldirs ${DESTDIR}${bindir} ${DESTDIR}${mandir}/man${manext}
-
-uninstall:
-	rm -f ${DESTDIR}${bindir}/${binprefix}less$(EXEEXT)
-	rm -f ${DESTDIR}${bindir}/${binprefix}lesskey$(EXEEXT)
-	rm -f ${DESTDIR}${bindir}/${binprefix}lessecho$(EXEEXT)
-	rm -f ${DESTDIR}${mandir}/man${manext}/${manprefix}less.${manext}
-	rm -f ${DESTDIR}${mandir}/man${manext}/${manprefix}lesskey.${manext}
-	rm -f ${DESTDIR}${mandir}/man${manext}/${manprefix}lessecho.${manext}
-
-info:
-install-info:
-dvi:
-check:
-installcheck:
-
-TAGS:
-	cd ${srcdir} && etags *.c *.h
-
-# config.status might not change defines.h
-# Don't rerun config.status if we just configured (so there's no stamp-h).
-defines.h: stamp-h
-stamp-h: defines.h.in config.status
-	test ! -f stamp-h || CONFIG_FILES= CONFIG_HEADERS=defines.h ./config.status
-	touch stamp-h
-Makefile: ${srcdir}/Makefile.in config.status
-	CONFIG_FILES=Makefile CONFIG_HEADERS= ./config.status
-config.status: ${srcdir}/configure
-	./config.status --recheck
-
-${srcdir}/configure: ${srcdir}/configure.ac
-	cd ${srcdir}; autoheader; autoconf
-
-clean:
-	rm -f *.${O} core less$(EXEEXT) lesskey$(EXEEXT) lessecho$(EXEEXT)
-
-mostlyclean: clean
-
-distclean: clean
-	rm -f Makefile config.status config.log config.cache defines.h stamp-h
-
-realclean: distclean
-	rm -f TAGS
-
diff --git a/contrib/less/Makefile.o2e b/contrib/less/Makefile.o2e
deleted file mode 100644
index 3bb6dfc..0000000
--- a/contrib/less/Makefile.o2e
+++ /dev/null
@@ -1,43 +0,0 @@
-# Makefile for less.
-# OS/2 version, for emx+gcc compiler
-
-#### Start of system configuration section. ####
-
-CC = gcc -Zomf
-CFLAGS = -I. -O2 -Wall
-LDFLAGS = -s -Zcrtdll
-LIBS = -ltermcap
-O = obj
-
-#### End of system configuration section. ####
-
-.SUFFIXES: .c .${O}
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.${O}:
-	${CC} -c ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.${O} screen.${O} brac.${O} ch.${O} charset.${O} cmdbuf.${O} \
-	command.${O} cvt.${O} decode.${O} edit.${O} filename.${O} forwback.${O} \
-	help.${O} ifile.${O} input.${O} jump.${O} line.${O} linenum.${O} \
-	lsystem.${O} mark.${O} optfunc.${O} option.${O} opttbl.${O} os.${O} \
-	output.${O} pattern.${O} position.${O} prompt.${O} search.${O} signal.${O} \
-	tags.${O} ttyin.${O} version.${O}  regexp.${O}
-
-all:    less.exe lesskey.exe scrsize.exe
-
-less.exe: ${OBJ}
-	${CC} ${OBJ} -o $@ ${LDFLAGS} ${LIBS}
-
-lesskey.exe: lesskey.${O} version.${O}
-	${CC} lesskey.${O} version.${O} -o $@ ${LDFLAGS}
-
-scrsize.exe: scrsize.c
-	${CC} ${CFLAGS} -D__ST_MT_ERRNO__ -s -Zmtd -lX11 $<
-
-${OBJ}: defines.h less.h
-
-defines.h: defines.o2
-	copy defines.o2 defines.h
diff --git a/contrib/less/Makefile.o9c b/contrib/less/Makefile.o9c
deleted file mode 100644
index e107f55..0000000
--- a/contrib/less/Makefile.o9c
+++ /dev/null
@@ -1,47 +0,0 @@
-# Makefile for less.
-# OS-9 version for Microware C 3.2.
-
-#### Start of system configuration section. ####
-
-CC = cc
-CPPFLAGS = -D_OSK_MWC32 -DDEBUG=0 -DSTRCSPN
-CFLAGS = -k=0 -v=.
-CFLAGS_COMPILE_ONLY = -r 
-LDFLAGS = -igm=8
-LIBS = -l=/dd/lib/termlib.l
-O = r
-
-
-#### End of system configuration section. ####
-
-.SUFFIXES: .c .${O}
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-
-.c.${O}:
-	${CC} ${CFLAGS_COMPILE_ONLY} ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.${O} screen.${O} brac.${O} ch.${O} charset.${O} cmdbuf.${O} \
-	command.${O} cvt.${O} decode.${O} edit.${O} filename.${O} forwback.${O} \
-	help.${O} ifile.${O} input.${O} jump.${O} line.${O} linenum.${O} \
-	lsystem.${O} mark.${O} optfunc.${O} option.${O} opttbl.${O} os.${O} \
-	output.${O} pattern.${O} position.${O} prompt.${O} search.${O} signal.${O} \
-	tags.${O} ttyin.${O} version.${O}  regexp.${O}
-
-all: less lessecho lesskey
-
-less: ${OBJ}
-	${CC} ${OBJ} -f=$@ ${LDFLAGS} ${LIBS}
-
-lesskey: lesskey.${O} version.${O}
-	${CC} lesskey.${O} version.${O} -f=$@ ${LDFLAGS}
-
-lessecho: lessecho.${O} version.${O}
-	${CC} lessecho.${O} version.${O} -f=$@ ${LDFLAGS}
-
-${OBJ}: defines.h less.h
-
-defines.h: defines.o9
-	copy defines.o9 defines.h -rf
diff --git a/contrib/less/Makefile.o9u b/contrib/less/Makefile.o9u
deleted file mode 100644
index 8ca84c8..0000000
--- a/contrib/less/Makefile.o9u
+++ /dev/null
@@ -1,43 +0,0 @@
-# Makefile for less.
-# OS-9 version for Ultra C.
-
-#### Start of system configuration section. ####
-
-CC = cc
-CPPFLAGS =
-CFLAGS = -v=.
-CFLAGS_COMPILE_ONLY = -eas
-LDFLAGS = -olM=24k
-LIBS = -ltermlib.l -lsys_clib.l -lunix.l
-O = r
-
-
-#### End of system configuration section. ####
-
-.SUFFIXES: .c .${O}
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.${O}:
-	${CC} ${CFLAGS_COMPILE_ONLY} ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.${O} screen.${O} brac.${O} ch.${O} charset.${O} cmdbuf.${O} \
-	command.${O} cvt.${O} decode.${O} edit.${O} filename.${O} forwback.${O} \
-	help.${O} ifile.${O} input.${O} jump.${O} line.${O} linenum.${O} \
-	lsystem.${O} mark.${O} optfunc.${O} option.${O} opttbl.${O} os.${O} \
-	output.${O} pattern.${O} position.${O} prompt.${O} search.${O} signal.${O} \
-	tags.${O} ttyin.${O} version.${O}  regexp.${O}
-
-all: less lesskey
-
-less: ${OBJ}
-	${CC} ${OBJ} -f=$@ ${LDFLAGS} ${LIBS}
-
-lesskey: lesskey.${O} version.${O}
-	${CC} lesskey.${O} version.${O} -f=$@ ${LDFLAGS}
-
-${OBJ}: defines.h less.h
-
-defines.h: defines.o9
-	copy defines.o9 defines.h -rf
diff --git a/contrib/less/Makefile.wnb b/contrib/less/Makefile.wnb
deleted file mode 100644
index 75a65cd..0000000
--- a/contrib/less/Makefile.wnb
+++ /dev/null
@@ -1,71 +0,0 @@
-# Makefile for less.
-# Windows version
-# Bolarnd C++ 5.5.1 free command line tools
-
-#### Start of system configuration section. ####
-# 
-# Borland's make knows its own location in the
-# filesystem.
-#
-
-CC = bcc32
-LIBDIR = $(MAKEDIR)\..\lib
-
-CFLAGS = -O2 -w-pro -TWC -P-c -v- -d -f- -ff- -vi
-LDFLAGS = -Tpe -v- -ap -c -x -V4.0 -GF:AGGRESSIVE
-LD = ilink32
-LIBS = ${LIBDIR}\import32.lib ${LIBDIR}\cw32.lib
-
-#### End of system configuration section. ####
-
-# 
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-# 
-.c.obj:
-	${CC} -c -I. ${CPPFLAGS} ${CFLAGS} $<
-
-OBJ = \
-	main.obj screen.obj brac.obj ch.obj charset.obj cmdbuf.obj \
-	command.obj cvt.obj decode.obj edit.obj filename.obj forwback.obj \
-	help.obj ifile.obj input.obj jump.obj line.obj linenum.obj \
-	lsystem.obj mark.obj optfunc.obj option.obj opttbl.obj os.obj \
-	output.obj pattern.obj position.obj prompt.obj search.obj signal.obj \
-	tags.obj ttyin.obj version.obj regexp.obj
-
-all: less lesskey lessecho
-
-# 
-# This is really horrible, but the command line is too long for 
-# MS-DOS if we try to link ${OBJ}.
-# 
-less: ${OBJ}
-	${LD} ${LDFLAGS} ${LIBDIR}\c0x32.obj $**, $@,,${LIBS}
-
-lesskey: lesskey.obj version.obj
-	${LD} ${LDFLAGS} ${LIBDIR}\c0x32.obj $**, $@,,${LIBS}
-
-lessecho: lessecho.obj version.obj
-	${LD} ${LDFLAGS} ${LIBDIR}\c0x32.obj $**, $@,,${LIBS}
-
-defines.h: defines.wn
-	-del defines.h
-	-copy defines.wn defines.h
-
-${OBJ}: less.h defines.h funcs.h cmd.h
-
-clean:
-	-del *.obj 
-	-del *.il? 
-	-del *.tds 
-	-del defines.h
-
-spotless: clean
-	-del less.exe
-	-del lesskey.exe
-	-del lessecho.exe
-
-realclean: spotless
-
-distclean: spotless
-
diff --git a/contrib/less/Makefile.wnm b/contrib/less/Makefile.wnm
deleted file mode 100644
index 7b33833..0000000
--- a/contrib/less/Makefile.wnm
+++ /dev/null
@@ -1,56 +0,0 @@
-# Makefile for less.
-# Windows 32 Visual C++ version
-
-#### Start of system configuration section. ####
-
-CC = cl
-
-# Normal flags
-CFLAGS = /nologo /ML /W3 /GX /O2 /I "." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /c
-LDFLAGS = /nologo /subsystem:console /incremental:no /machine:I386
-
-# Debugging flags
-#CFLAGS = /nologo /MDd /W3 /GX /Od /Gm /Zi /I "." /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /c
-#LDFLAGS = /nologo /subsystem:console /incremental:yes /debug /machine:I386
-
-LD = link
-LIBS = user32.lib
-
-#### End of system configuration section. ####
-
-# This rule allows us to supply the necessary -D options
-# in addition to whatever the user asks for.
-.c.obj:
-	$(CC) $(CFLAGS) $<
-
-OBJ = \
-	main.obj screen.obj brac.obj ch.obj charset.obj cmdbuf.obj \
-	command.obj cvt.obj decode.obj edit.obj filename.obj forwback.obj \
-	help.obj ifile.obj input.obj jump.obj line.obj linenum.obj \
-	lsystem.obj mark.obj optfunc.obj option.obj opttbl.obj os.obj \
-	output.obj pattern.obj position.obj prompt.obj search.obj signal.obj \
-	tags.obj ttyin.obj version.obj regexp.obj
-
-all: less.exe lesskey.exe
-
-# This is really horrible, but the command line is too long for 
-# MS-DOS if we try to link ${OBJ}.
-less.exe: $(OBJ)
-	-del lesskey.obj
-	$(LD) $(LDFLAGS) *.obj $(LIBS) /out:$@
-
-lesskey.exe: lesskey.obj version.obj
-	$(LD) $(LDFLAGS) lesskey.obj version.obj $(LIBS) /out:$@
-
-defines.h: defines.wn
-	-del defines.h
-	-copy defines.wn defines.h
-
-$(OBJ): less.h defines.h funcs.h cmd.h
-
-clean:
-	-del *.obj 
-	-del less.exe
-	-del lesskey.exe
-
-
diff --git a/contrib/less/configure b/contrib/less/configure
deleted file mode 100755
index e401d58..0000000
--- a/contrib/less/configure
+++ /dev/null
@@ -1,6747 +0,0 @@
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for less 1.
-#
-#
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-# Foundation, Inc.
-#
-#
-# This configure script is free software; the Free Software Foundation
-# gives unlimited permission to copy, distribute and modify it.
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
-# Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
-  *[\\/]* ) as_myself=$0 ;;
-  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-  done
-IFS=$as_save_IFS
-
-     ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
-  as_myself=$0
-fi
-if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  exit 1
-fi
-
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '\${1+\"\$@\"}'='\"\$@\"'
-  setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-"
-  as_required="as_fn_return () { (exit \$1); }
-as_fn_success () { as_fn_return 0; }
-as_fn_failure () { as_fn_return 1; }
-as_fn_ret_success () { return 0; }
-as_fn_ret_failure () { return 1; }
-
-exitcode=0
-as_fn_success || { exitcode=1; echo as_fn_success failed.; }
-as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
-as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
-as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
-
-else
-  exitcode=1; echo positional parameters were not saved.
-fi
-test x\$exitcode = x0 || exit 1"
-  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
-  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
-  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
-  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
-test \$(( 1 + 1 )) = 2 || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
-  as_have_required=yes
-else
-  as_have_required=no
-fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
-
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-as_found=false
-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  as_found=:
-  case $as_dir in #(
-	 /*)
-	   for as_base in sh bash ksh sh5; do
-	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
-	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  break 2
-fi
-fi
-	   done;;
-       esac
-  as_found=false
-done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
-IFS=$as_save_IFS
-
-
-      if test "x$CONFIG_SHELL" != x; then :
-  # We cannot yet assume a decent shell, so we have to provide a
-	# neutralization value for shells without unset; and this also
-	# works around shells that cannot unset nonexistent variables.
-	# Preserve -v and -x to the replacement shell.
-	BASH_ENV=/dev/null
-	ENV=/dev/null
-	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-	export CONFIG_SHELL
-	case $- in # ((((
-	  *v*x* | *x*v* ) as_opts=-vx ;;
-	  *v* ) as_opts=-v ;;
-	  *x* ) as_opts=-x ;;
-	  * ) as_opts= ;;
-	esac
-	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
-fi
-
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
-  else
-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
-$0: including any error possibly output before this
-$0: message. Then install a modern shell, or manually run
-$0: the script under such a shell if you do have one."
-  fi
-  exit 1
-fi
-fi
-fi
-SHELL=${CONFIG_SHELL-/bin/sh}
-export SHELL
-# Unset more variables known to interfere with behavior of common tools.
-CLICOLOR_FORCE= GREP_OPTIONS=
-unset CLICOLOR_FORCE GREP_OPTIONS
-
-## --------------------- ##
-## M4sh Shell Functions. ##
-## --------------------- ##
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-
-# as_fn_mkdir_p
-# -------------
-# Create "$as_dir" as a directory, including parents if necessary.
-as_fn_mkdir_p ()
-{
-
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || eval $as_mkdir_p || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
-
-
-} # as_fn_mkdir_p
-# as_fn_append VAR VALUE
-# ----------------------
-# Append the text in VALUE to the end of the definition contained in VAR. Take
-# advantage of any shell optimizations that allow amortized linear growth over
-# repeated appends, instead of the typical quadratic growth present in naive
-# implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
-  eval 'as_fn_append ()
-  {
-    eval $1+=\$2
-  }'
-else
-  as_fn_append ()
-  {
-    eval $1=\$$1\$2
-  }
-fi # as_fn_append
-
-# as_fn_arith ARG...
-# ------------------
-# Perform arithmetic evaluation on the ARGs, and store the result in the
-# global $as_val. Take advantage of shells that can avoid forks. The arguments
-# must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
-  eval 'as_fn_arith ()
-  {
-    as_val=$(( $* ))
-  }'
-else
-  as_fn_arith ()
-  {
-    as_val=`expr "$@" || test $? -eq 1`
-  }
-fi # as_fn_arith
-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
-# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
-# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with STATUS, using 1 if that was 0.
-as_fn_error ()
-{
-  as_status=$1; test $as_status -eq 0 && as_status=1
-  if test "$4"; then
-    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
-  fi
-  $as_echo "$as_me: error: $2" >&2
-  as_fn_exit $as_status
-} # as_fn_error
-
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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-{
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-       choke me
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-{
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-{
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
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-{
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-{
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
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-/* end confdefs.h.  */
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-# include <assert.h>
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-
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-ac_ext=c
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-
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
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-
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-	      test -s conftest.dir/conftest.one &&
-	      test -s conftest.dir/conftest.two
-	    then
-	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
-	      break 3
-	    fi
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-#include <sys/types.h>
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-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
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-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
-int
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-  ;
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-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
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-		      ? 1 : -1];
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-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
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-#include <sys/types.h>
- /* Check that off_t can represent 2**63 - 1 correctly.
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-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
-  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1];
-int
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-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char tgetent ();
-int
-main ()
-{
-return tgetent ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_termcap_tgetent=yes
-else
-  ac_cv_lib_termcap_tgetent=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_termcap_tgetent" >&5
-$as_echo "$ac_cv_lib_termcap_tgetent" >&6; }
-if test "x$ac_cv_lib_termcap_tgetent" = xyes; then :
-  have_termcap=yes
-else
-  have_termcap=no
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tgetent in -ltermlib" >&5
-$as_echo_n "checking for tgetent in -ltermlib... " >&6; }
-if ${ac_cv_lib_termlib_tgetent+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ltermlib  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char tgetent ();
-int
-main ()
-{
-return tgetent ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_termlib_tgetent=yes
-else
-  ac_cv_lib_termlib_tgetent=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_termlib_tgetent" >&5
-$as_echo "$ac_cv_lib_termlib_tgetent" >&6; }
-if test "x$ac_cv_lib_termlib_tgetent" = xyes; then :
-  have_termlib=yes
-else
-  have_termlib=no
-fi
-
-# Regular expressions (regcmp) are in -lgen on Solaris 2, (but in libc
-# at least on Solaris 10 (2.10)) and in -lintl on SCO Unix.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing regcmp" >&5
-$as_echo_n "checking for library containing regcmp... " >&6; }
-if ${ac_cv_search_regcmp+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char regcmp ();
-int
-main ()
-{
-return regcmp ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' gen intl PW; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_regcmp=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_regcmp+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_regcmp+:} false; then :
-
-else
-  ac_cv_search_regcmp=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_regcmp" >&5
-$as_echo "$ac_cv_search_regcmp" >&6; }
-ac_res=$ac_cv_search_regcmp
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
-
-# Checks for terminal libraries
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working terminal libraries" >&5
-$as_echo_n "checking for working terminal libraries... " >&6; }
-TERMLIBS=
-
-# Check for systems where curses is broken.
-curses_broken=0
-if test x`uname -s` = "xHP-UX" >/dev/null 2>&1; then
-if test x`uname -r` = "xB.11.00" >/dev/null 2>&1; then
-   curses_broken=1
-fi
-if test x`uname -r` = "xB.11.11" >/dev/null 2>&1; then
-   curses_broken=1
-fi
-fi
-
-if test $curses_broken = 0; then
-
-# -- Try tinfo.
-if test "x$TERMLIBS" = x; then
-  if test $have_tinfo = yes; then
-    TERMLIBS="-ltinfo"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try xcurses.
-if test "x$TERMLIBS" = x; then
-  if test $have_xcurses = yes; then
-    TERMLIBS="-lxcurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try ncursesw.
-if test "x$TERMLIBS" = x; then
-  if test $have_ncursesw = yes; then
-    TERMLIBS="-lncursesw"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try ncurses.
-if test "x$TERMLIBS" = x; then
-  if test $have_ncurses = yes; then
-    TERMLIBS="-lncurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try curses.
-if test "x$TERMLIBS" = x; then
-  if test $have_curses = yes; then
-    TERMLIBS="-lcurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try curses & termcap.
-if test "x$TERMLIBS" = x; then
-  if test $have_curses = yes; then
-  if test $have_termcap = yes; then
-    TERMLIBS="-lcurses -ltermcap"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-  fi
-fi
-fi
-
-# -- Try termcap.
-if test "x$TERMLIBS" = x; then
-  if test $have_termcap = yes; then
-    TERMLIBS="-ltermcap"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try termlib.
-if test "x$TERMLIBS" = x; then
-  if test $have_termlib = yes; then
-    TERMLIBS="-lcurses -ltermlib"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  termok=yes
-else
-  termok=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-if test "x$TERMLIBS" = x; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Cannot find terminal libraries - configure failed" >&5
-$as_echo "Cannot find terminal libraries - configure failed" >&6; }
-  exit 1
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: using $TERMLIBS" >&5
-$as_echo "using $TERMLIBS" >&6; }
-LIBS="$LIBS $TERMLIBS"
-
-# Checks for header files.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_header in ctype.h errno.h fcntl.h limits.h stdio.h stdlib.h string.h termcap.h termio.h termios.h time.h unistd.h values.h sys/ioctl.h sys/stream.h wctype.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Checks for typedefs, structures, and compiler characteristics.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stat file-mode macros are broken" >&5
-$as_echo_n "checking whether stat file-mode macros are broken... " >&6; }
-if ${ac_cv_header_stat_broken+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#if defined S_ISBLK && defined S_IFDIR
-extern char c1[S_ISBLK (S_IFDIR) ? -1 : 1];
-#endif
-
-#if defined S_ISBLK && defined S_IFCHR
-extern char c2[S_ISBLK (S_IFCHR) ? -1 : 1];
-#endif
-
-#if defined S_ISLNK && defined S_IFREG
-extern char c3[S_ISLNK (S_IFREG) ? -1 : 1];
-#endif
-
-#if defined S_ISSOCK && defined S_IFREG
-extern char c4[S_ISSOCK (S_IFREG) ? -1 : 1];
-#endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stat_broken=no
-else
-  ac_cv_header_stat_broken=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stat_broken" >&5
-$as_echo "$ac_cv_header_stat_broken" >&6; }
-if test $ac_cv_header_stat_broken = yes; then
-
-$as_echo "#define STAT_MACROS_BROKEN 1" >>confdefs.h
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
-$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
-if ${ac_cv_c_const+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-/* FIXME: Include the comments suggested by Paul. */
-#ifndef __cplusplus
-  /* Ultrix mips cc rejects this.  */
-  typedef int charset[2];
-  const charset cs;
-  /* SunOS 4.1.1 cc rejects this.  */
-  char const *const *pcpcc;
-  char **ppc;
-  /* NEC SVR4.0.2 mips cc rejects this.  */
-  struct point {int x, y;};
-  static struct point const zero = {0,0};
-  /* AIX XL C 1.02.0.0 rejects this.
-     It does not let you subtract one const X* pointer from another in
-     an arm of an if-expression whose if-part is not a constant
-     expression */
-  const char *g = "string";
-  pcpcc = &g + (g ? g-g : 0);
-  /* HPUX 7.0 cc rejects these. */
-  ++pcpcc;
-  ppc = (char**) pcpcc;
-  pcpcc = (char const *const *) ppc;
-  { /* SCO 3.2v4 cc rejects this.  */
-    char *t;
-    char const *s = 0 ? (char *) 0 : (char const *) 0;
-
-    *t++ = 0;
-    if (s) return 0;
-  }
-  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
-    int x[] = {25, 17};
-    const int *foo = &x[0];
-    ++foo;
-  }
-  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
-    typedef const int *iptr;
-    iptr p = 0;
-    ++p;
-  }
-  { /* AIX XL C 1.02.0.0 rejects this saying
-       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
-    struct s { int j; const int *ap[3]; };
-    struct s *b; b->j = 5;
-  }
-  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
-    const int foo = 10;
-    if (!foo) return 0;
-  }
-  return !cs[0] && !zero.x;
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_c_const=yes
-else
-  ac_cv_c_const=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
-$as_echo "$ac_cv_c_const" >&6; }
-if test $ac_cv_c_const = no; then
-
-$as_echo "#define const /**/" >>confdefs.h
-
-fi
-
-ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
-if test "x$ac_cv_type_off_t" = xyes; then :
-
-else
-
-cat >>confdefs.h <<_ACEOF
-#define off_t long int
-_ACEOF
-
-fi
-
-ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
-if test "x$ac_cv_type_size_t" = xyes; then :
-
-else
-
-cat >>confdefs.h <<_ACEOF
-#define size_t unsigned int
-_ACEOF
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5
-$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; }
-if ${ac_cv_header_time+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/time.h>
-#include <time.h>
-
-int
-main ()
-{
-if ((struct tm *) 0)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_time=yes
-else
-  ac_cv_header_time=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5
-$as_echo "$ac_cv_header_time" >&6; }
-if test $ac_cv_header_time = yes; then
-
-$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h
-
-fi
-
-
-# Autoheader templates for symbols defined later by AC_DEFINE.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# Checks for identifiers.
-ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
-if test "x$ac_cv_type_off_t" = xyes; then :
-
-else
-
-cat >>confdefs.h <<_ACEOF
-#define off_t long int
-_ACEOF
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for void" >&5
-$as_echo_n "checking for void... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-void *foo = 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_VOID 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for const" >&5
-$as_echo_n "checking for const... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-const int foo = 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_CONST 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for time_t" >&5
-$as_echo_n "checking for time_t... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <time.h>
-int
-main ()
-{
-time_t t = 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_TIME_T 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for st_ino in struct stat" >&5
-$as_echo_n "checking for st_ino in struct stat... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/stat.h>
-int
-main ()
-{
-struct stat s; dev_t dev = s.st_dev; ino_t ino = s.st_ino;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_STAT_INO 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-# Checks for library functions.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers" >&5
-$as_echo_n "checking return type of signal handlers... " >&6; }
-if ${ac_cv_type_signal+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <signal.h>
-
-int
-main ()
-{
-return *(signal (0, 0)) (0) == 1;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_type_signal=int
-else
-  ac_cv_type_signal=void
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5
-$as_echo "$ac_cv_type_signal" >&6; }
-
-cat >>confdefs.h <<_ACEOF
-#define RETSIGTYPE $ac_cv_type_signal
-_ACEOF
-
-
-for ac_func in fsync popen _setjmp sigprocmask sigsetmask snprintf stat system fchmod
-do :
-  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-# AC_CHECK_FUNCS may not work for inline functions, so test these separately.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for memcpy" >&5
-$as_echo_n "checking for memcpy... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_STRING_H
-#include <string.h>
-#endif
-int
-main ()
-{
-memcpy(0,0,0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_MEMCPY 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for strchr" >&5
-$as_echo_n "checking for strchr... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_STRING_H
-#include <string.h>
-#endif
-int
-main ()
-{
-strchr("x",'x');
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_STRCHR 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for strstr" >&5
-$as_echo_n "checking for strstr... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_STRING_H
-#include <string.h>
-#endif
-int
-main ()
-{
-strstr("x","x");
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_STRSTR 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-# Some systems have termios.h but not the corresponding functions.
-ac_fn_c_check_func "$LINENO" "tcgetattr" "ac_cv_func_tcgetattr"
-if test "x$ac_cv_func_tcgetattr" = xyes; then :
-  $as_echo "#define HAVE_TERMIOS_FUNCS 1" >>confdefs.h
-
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fileno" >&5
-$as_echo_n "checking for fileno... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_STDIO_H
-#include <stdio.h>
-#endif
-int
-main ()
-{
-static int x; x = fileno(stdin);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_FILENO 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for strerror" >&5
-$as_echo_n "checking for strerror... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_STDIO_H
-#include <stdio.h>
-#endif
-#if HAVE_STRING_H
-#include <string.h>
-#endif
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-int
-main ()
-{
-static char *x; x = strerror(0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_STRERROR 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sys_errlist" >&5
-$as_echo_n "checking for sys_errlist... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-extern char *sys_errlist[]; static char **x; x = sys_errlist;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_SYS_ERRLIST 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-ac_fn_c_check_type "$LINENO" "sigset_t" "ac_cv_type_sigset_t" "#include <signal.h>
-"
-if test "x$ac_cv_type_sigset_t" = xyes; then :
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_SIGSET_T 1
-_ACEOF
-
-
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sigemptyset" >&5
-$as_echo_n "checking for sigemptyset... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <signal.h>
-
-int
-main ()
-{
-sigset_t s; sigemptyset(&s);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_SIGEMPTYSET 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-have_errno=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for errno" >&5
-$as_echo_n "checking for errno... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-int
-main ()
-{
-static int x; x = errno;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes - in errno.h" >&5
-$as_echo "yes - in errno.h" >&6; }; $as_echo "#define HAVE_ERRNO 1" >>confdefs.h
- have_errno=yes
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-if test $have_errno = no; then
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-int
-main ()
-{
-extern int errno; static int x; x = errno;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes - must define" >&5
-$as_echo "yes - must define" >&6; }; $as_echo "#define HAVE_ERRNO 1" >>confdefs.h
- $as_echo "#define MUST_DEFINE_ERRNO 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for locale" >&5
-$as_echo_n "checking for locale... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <locale.h>
-#include <ctype.h>
-#include <langinfo.h>
-int
-main ()
-{
-setlocale(LC_CTYPE,""); isprint(0); iscntrl(0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_LOCALE 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ctype functions" >&5
-$as_echo_n "checking for ctype functions... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#if HAVE_CTYPE_H
-#include <ctype.h>
-#endif
-int
-main ()
-{
-static int x; x = isupper(x); x = tolower(x); x = toupper(x);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_UPPER_LOWER 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for wctype functions" >&5
-$as_echo_n "checking for wctype functions... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <wctype.h>
-int
-main ()
-{
-iswlower(0); iswupper(0); towlower(0); towupper(0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_WCTYPE 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-# Checks for external variable ospeed in the termcap library.
-have_ospeed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking termcap for ospeed" >&5
-$as_echo_n "checking termcap for ospeed... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <sys/types.h>
-#if HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#if HAVE_TERMCAP_H
-#include <termcap.h>
-#endif
-int
-main ()
-{
-ospeed = 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes - in termcap.h" >&5
-$as_echo "yes - in termcap.h" >&6; }; $as_echo "#define HAVE_OSPEED 1" >>confdefs.h
- have_ospeed=yes
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-if test $have_ospeed = no; then
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-extern short ospeed; ospeed = 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes - must define" >&5
-$as_echo "yes - must define" >&6; }; $as_echo "#define HAVE_OSPEED 1" >>confdefs.h
- $as_echo "#define MUST_DEFINE_OSPEED 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-
-# Compile in secure mode?
-
-# Check whether --with-secure was given.
-if test "${with_secure+set}" = set; then :
-  withval=$with_secure; $as_echo "#define SECURE_COMPILE 1" >>confdefs.h
-
-else
-  $as_echo "#define SECURE_COMPILE 0" >>confdefs.h
-
-fi
-
-
-# Should we use floating point?
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for floating point" >&5
-$as_echo_n "checking for floating point... " >&6; }
-
-# Check whether --with-no-float was given.
-if test "${with_no_float+set}" = set; then :
-  withval=$with_no_float; WANT_NO_FLOAT=1
-else
-  WANT_NO_FLOAT=0
-fi
-
-if test $WANT_NO_FLOAT = 0; then
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-double f1 = 12.5; double f2 = f1*f1/2.5;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_FLOAT 1" >>confdefs.h
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: disabled by user" >&5
-$as_echo "disabled by user" >&6; }
-fi
-
-# Checks for regular expression functions.
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-have_posix_regex=unknown
-supported_regex=""
-
-# Select a regular expression library.
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-
-# Check whether --with-regex was given.
-if test "${with_regex+set}" = set; then :
-  withval=$with_regex; WANT_REGEX="$withval"
-fi
-
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = posix; then
-# Some versions of Solaris have a regcomp() function, but it doesn't work!
-# So we run a test program.  If we're cross-compiling, do it the old way.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for POSIX regcomp" >&5
-$as_echo_n "checking for POSIX regcomp... " >&6; }
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-  have_posix_regex=unknown
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <sys/types.h>
-#include <regex.h>
-main() { regex_t r; regmatch_t rm; char *text = "xabcy";
-if (regcomp(&r, "abc", 0)) exit(1);
-if (regexec(&r, text, 1, &rm, 0)) exit(1);
-#ifndef __WATCOMC__
-if (rm.rm_so != 1) exit(1); /* check for correct offset */
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-if (rm.rm_sp != text + 1) exit(1); /* check for correct offset */
-#endif
-exit(0); }
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  have_posix_regex=yes
-else
-  have_posix_regex=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-if test $have_posix_regex = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-  $as_echo "#define HAVE_POSIX_REGCOMP 1" >>confdefs.h
- supported_regex="$supported_regex posix"
-  have_regex=yes
-elif test $have_posix_regex = unknown; then
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <sys/types.h>
-#include <regex.h>
-int
-main ()
-{
-regex_t *r; regfree(r);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-  $as_echo "#define HAVE_POSIX_REGCOMP 1" >>confdefs.h
- have_regex=yes; supported_regex="$supported_regex posix"
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-rm -f core conftest.err conftest.$ac_objext \
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-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
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-fi
-
-if test $have_regex = no; then
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pcre_compile in -lpcre" >&5
-$as_echo_n "checking for pcre_compile in -lpcre... " >&6; }
-if ${ac_cv_lib_pcre_pcre_compile+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpcre  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char pcre_compile ();
-int
-main ()
-{
-return pcre_compile ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_pcre_pcre_compile=yes
-else
-  ac_cv_lib_pcre_pcre_compile=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pcre_pcre_compile" >&5
-$as_echo "$ac_cv_lib_pcre_pcre_compile" >&6; }
-if test "x$ac_cv_lib_pcre_pcre_compile" = xyes; then :
-  $as_echo "#define HAVE_PCRE 1" >>confdefs.h
- LIBS="$LIBS -lpcre" have_regex=yes; supported_regex="$supported_regex pcre"
-fi
-
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = gnu; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for re_compile_pattern in -lc" >&5
-$as_echo_n "checking for re_compile_pattern in -lc... " >&6; }
-if ${ac_cv_lib_c_re_compile_pattern+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lc  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char re_compile_pattern ();
-int
-main ()
-{
-return re_compile_pattern ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_c_re_compile_pattern=yes
-else
-  ac_cv_lib_c_re_compile_pattern=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_re_compile_pattern" >&5
-$as_echo "$ac_cv_lib_c_re_compile_pattern" >&6; }
-if test "x$ac_cv_lib_c_re_compile_pattern" = xyes; then :
-  $as_echo "#define HAVE_GNU_REGEX 1" >>confdefs.h
- have_regex=yes; supported_regex="$supported_regex gnu"
-fi
-
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcmp; then
-ac_fn_c_check_func "$LINENO" "regcmp" "ac_cv_func_regcmp"
-if test "x$ac_cv_func_regcmp" = xyes; then :
-  $as_echo "#define HAVE_REGCMP 1" >>confdefs.h
- have_regex=yes; supported_regex="$supported_regex regcmp"
-fi
-
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for V8 regcomp" >&5
-$as_echo_n "checking for V8 regcomp... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include "regexp.h"
-int
-main ()
-{
-regcomp("");
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }; $as_echo "#define HAVE_V8_REGCOMP 1" >>confdefs.h
- have_regex=yes; supported_regex="$supported_regex regcomp"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-fi
-
-if test $have_regex = no && test -f ${srcdir}/regexp.c; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp-local; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: using V8 regcomp -- local source" >&5
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-
-supported_regex="$supported_regex regcomp-local"
-$as_echo "#define HAVE_REGEXEC2 1" >>confdefs.h
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-fi
-
-if test $have_regex = no; then
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for re_comp" >&5
-$as_echo_n "checking for re_comp... " >&6; }
-ac_fn_c_check_func "$LINENO" "re_comp" "ac_cv_func_re_comp"
-if test "x$ac_cv_func_re_comp" = xyes; then :
-  $as_echo "#define HAVE_RE_COMP 1" >>confdefs.h
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-
-fi
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-
-if test $have_regex = no; then
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: using no regex" >&5
-$as_echo "using no regex" >&6; }
-else
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot find regular expression library" >&5
-$as_echo "$as_me: WARNING: cannot find regular expression library" >&2;}
-fi
-$as_echo "#define NO_REGEX 1" >>confdefs.h
- supported_regex="$supported_regex none"
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: regular expression library: $supported_regex" >&5
-$as_echo "regular expression library: $supported_regex" >&6; }
-
-
-# Check whether --with-editor was given.
-if test "${with_editor+set}" = set; then :
-  withval=$with_editor; cat >>confdefs.h <<_ACEOF
-#define EDIT_PGM "$withval"
-_ACEOF
-
-else
-  $as_echo "#define EDIT_PGM \"vi\"" >>confdefs.h
-
-fi
-
-
-
-
-ac_config_files="$ac_config_files Makefile"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems.  If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
-  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
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-      esac
-      case $ac_var in #(
-      _ | IFS | as_nl) ;; #(
-      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) { eval $ac_var=; unset $ac_var;} ;;
-      esac ;;
-    esac
-  done
-
-  (set) 2>&1 |
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-      # substitution turns \\\\ into \\, and sed turns \\ into \.
-      sed -n \
-	"s/'/'\\\\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
-      ;; #(
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
-      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
-      ;;
-    esac |
-    sort
-) |
-  sed '
-     /^ac_cv_env_/b end
-     t clear
-     :clear
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-     t end
-     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
-     :end' >>confcache
-if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
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-$as_echo "$as_me: updating cache $cache_file" >&6;}
-      if test ! -f "$cache_file" || test -h "$cache_file"; then
-	cat confcache >"$cache_file"
-      else
-        case $cache_file in #(
-        */* | ?:*)
-	  mv -f confcache "$cache_file"$$ &&
-	  mv -f "$cache_file"$$ "$cache_file" ;; #(
-        *)
-	  mv -f confcache "$cache_file" ;;
-	esac
-      fi
-    fi
-  else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
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-  fi
-fi
-rm -f confcache
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-DEFS=-DHAVE_CONFIG_H
-
-ac_libobjs=
-ac_ltlibobjs=
-U=
-for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
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-  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
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-  #    will be set to the directory where LIBOBJS objects are built.
-  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
-  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
-done
-LIBOBJS=$ac_libobjs
-
-LTLIBOBJS=$ac_ltlibobjs
-
-
-
-: "${CONFIG_STATUS=./config.status}"
-ac_write_fail=0
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
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-as_write_fail=0
-cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
-#! $SHELL
-# Generated by $as_me.
-# Run this file to recreate the current configuration.
-# Compiler output produced by configure, useful for debugging
-# configure, is in config.log if it exists.
-
-debug=false
-ac_cs_recheck=false
-ac_cs_silent=false
-
-SHELL=\${CONFIG_SHELL-$SHELL}
-export SHELL
-_ASEOF
-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
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-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
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-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
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-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
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-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
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-
-# The user is always right.
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-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
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-
-# Find who we are.  Look in the path if we contain no directory separator.
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-for as_dir in $PATH
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-IFS=$as_save_IFS
-
-     ;;
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-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
-# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
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-{
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-  as_fn_exit $as_status
-} # as_fn_error
-
-
-# as_fn_set_status STATUS
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-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-
-# as_fn_unset VAR
-# ---------------
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-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-# as_fn_append VAR VALUE
-# ----------------------
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-  {
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-  }'
-else
-  as_fn_append ()
-  {
-    eval $1=\$$1\$2
-  }
-fi # as_fn_append
-
-# as_fn_arith ARG...
-# ------------------
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-# global $as_val. Take advantage of shells that can avoid forks. The arguments
-# must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
-  eval 'as_fn_arith ()
-  {
-    as_val=$(( $* ))
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-  prefix = substr(line, 1, index(line, defundef) - 1)
-  if (D_is_set[macro]) {
-    # Preserve the white space surrounding the "#".
-    print prefix "define", macro P[macro] D[macro]
-    next
-  } else {
-    # Replace #undef with comments.  This is necessary, for example,
-    # in the case of _POSIX_SOURCE, which is predefined and required
-    # on some systems where configure will not decide to define it.
-    if (defundef == "undef") {
-      print "/*", prefix defundef, macro, "*/"
-      next
-    }
-  }
-}
-{ print }
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
-fi # test -n "$CONFIG_HEADERS"
-
-
-eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    "
-shift
-for ac_tag
-do
-  case $ac_tag in
-  :[FHLC]) ac_mode=$ac_tag; continue;;
-  esac
-  case $ac_mode$ac_tag in
-  :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5 ;;
-  :[FH]-) ac_tag=-:-;;
-  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
-  esac
-  ac_save_IFS=$IFS
-  IFS=:
-  set x $ac_tag
-  IFS=$ac_save_IFS
-  shift
-  ac_file=$1
-  shift
-
-  case $ac_mode in
-  :L) ac_source=$1;;
-  :[FH])
-    ac_file_inputs=
-    for ac_f
-    do
-      case $ac_f in
-      -) ac_f="$ac_tmp/stdin";;
-      *) # Look for the file first in the build tree, then in the source tree
-	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
-	 test -f "$ac_f" ||
-	   case $ac_f in
-	   [\\/$]*) false;;
-	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
-	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5 ;;
-      esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      as_fn_append ac_file_inputs " '$ac_f'"
-    done
-
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
-    # use $as_me), people would be surprised to read:
-    #    /* config.h.  Generated by config.status.  */
-    configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
-	`' by configure.'
-    if test x"$ac_file" != x-; then
-      configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
-    fi
-    # Neutralize special characters interpreted by sed in replacement strings.
-    case $configure_input in #(
-    *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
-       sed 's/[\\\\&|]/\\\\&/g'`;; #(
-    *) ac_sed_conf_input=$configure_input;;
-    esac
-
-    case $ac_tag in
-    *:-:* | *:-) cat >"$ac_tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5  ;;
-    esac
-    ;;
-  esac
-
-  ac_dir=`$as_dirname -- "$ac_file" ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-  as_dir="$ac_dir"; as_fn_mkdir_p
-  ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
-  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
-  case $ac_top_builddir_sub in
-  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
-  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
-  esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
-  .)  # We are building in place.
-    ac_srcdir=.
-    ac_top_srcdir=$ac_top_builddir_sub
-    ac_abs_top_srcdir=$ac_pwd ;;
-  [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
-  *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
-  case $ac_mode in
-  :F)
-  #
-  # CONFIG_FILE
-  #
-
-  case $INSTALL in
-  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
-  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
-  esac
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-# If the template does not know about datarootdir, expand it.
-# FIXME: This hack should be removed a few years after 2.60.
-ac_datarootdir_hack=; ac_datarootdir_seen=
-ac_sed_dataroot='
-/datarootdir/ {
-  p
-  q
-}
-/@datadir@/p
-/@docdir@/p
-/@infodir@/p
-/@localedir@/p
-/@mandir@/p'
-case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
-*datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  ac_datarootdir_hack='
-  s&@datadir@&$datadir&g
-  s&@docdir@&$docdir&g
-  s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
-  s&@mandir@&$mandir&g
-  s&\\\${datarootdir}&$datarootdir&g' ;;
-esac
-_ACEOF
-
-# Neutralize VPATH when `$srcdir' = `.'.
-# Shell code in configure.ac might set extrasub.
-# FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_sed_extra="$ac_vpsub
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
-s|@configure_input@|$ac_sed_conf_input|;t t
-s&@top_builddir@&$ac_top_builddir_sub&;t t
-s&@top_build_prefix@&$ac_top_build_prefix&;t t
-s&@srcdir@&$ac_srcdir&;t t
-s&@abs_srcdir@&$ac_abs_srcdir&;t t
-s&@top_srcdir@&$ac_top_srcdir&;t t
-s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
-s&@builddir@&$ac_builddir&;t t
-s&@abs_builddir@&$ac_abs_builddir&;t t
-s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
-s&@INSTALL@&$ac_INSTALL&;t t
-$ac_datarootdir_hack
-"
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
-  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-
-test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
-      "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&2;}
-
-  rm -f "$ac_tmp/stdin"
-  case $ac_file in
-  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
-  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
-  esac \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
- ;;
-  :H)
-  #
-  # CONFIG_HEADER
-  #
-  if test x"$ac_file" != x-; then
-    {
-      $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
-    } >"$ac_tmp/config.h" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-$as_echo "$as_me: $ac_file is unchanged" >&6;}
-    else
-      rm -f "$ac_file"
-      mv "$ac_tmp/config.h" "$ac_file" \
-	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    fi
-  else
-    $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
-      || as_fn_error $? "could not create -" "$LINENO" 5
-  fi
- ;;
-
-
-  esac
-
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status.  When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
-  ac_config_status_args=
-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
-  exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
-  exec 5>>config.log
-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
-  # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
diff --git a/contrib/less/configure.ac b/contrib/less/configure.ac
deleted file mode 100644
index 4ac9a35..0000000
--- a/contrib/less/configure.ac
+++ /dev/null
@@ -1,698 +0,0 @@
-# Process this file with autoconf to produce a configure script.
-
-# Copyright (C) 1984-2011  Mark Nudelman
-#
-# You may distribute under the terms of either the GNU General Public
-# License or the Less License, as specified in the README file.
-#
-# For more information about less, or for information on how to 
-# contact the author, see the README file.
-
-# Autoconf initialization.
-AC_INIT(less, 1)
-AC_CONFIG_SRCDIR([forwback.c])
-AC_CONFIG_HEADER([defines.h])
-
-# Checks for programs.
-AC_PROG_CC
-AC_ISC_POSIX
-AC_PROG_GCC_TRADITIONAL
-AC_PROG_INSTALL
-
-# Checks for compilation model.
-AC_SYS_LARGEFILE
-
-# Checks for general libraries.
-AC_CHECK_LIB(tinfo, tgoto, [have_tinfo=yes], [have_tinfo=no])
-AC_CHECK_LIB(xcurses, initscr, [have_xcurses=yes], [have_xcurses=no])
-AC_CHECK_LIB(ncursesw, initscr, [have_ncursesw=yes], [have_ncursesw=no])
-AC_CHECK_LIB(ncurses, initscr, [have_ncurses=yes], [have_ncurses=no])
-AC_CHECK_LIB(curses, initscr, [have_curses=yes], [have_curses=no])
-AC_CHECK_LIB(termcap, tgetent, [have_termcap=yes], [have_termcap=no])
-AC_CHECK_LIB(termlib, tgetent, [have_termlib=yes], [have_termlib=no])
-# Regular expressions (regcmp) are in -lgen on Solaris 2, (but in libc
-# at least on Solaris 10 (2.10)) and in -lintl on SCO Unix.
-AC_SEARCH_LIBS([regcmp], [gen intl PW])
-
-# Checks for terminal libraries
-AC_MSG_CHECKING([for working terminal libraries])
-TERMLIBS=
-
-# Check for systems where curses is broken.
-curses_broken=0
-if test x`uname -s` = "xHP-UX" >/dev/null 2>&1; then
-if test x`uname -r` = "xB.11.00" >/dev/null 2>&1; then
-   curses_broken=1
-fi
-if test x`uname -r` = "xB.11.11" >/dev/null 2>&1; then
-   curses_broken=1
-fi
-fi
-
-if test $curses_broken = 0; then
-
-# -- Try tinfo.
-if test "x$TERMLIBS" = x; then
-  if test $have_tinfo = yes; then
-    TERMLIBS="-ltinfo"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try xcurses.
-if test "x$TERMLIBS" = x; then
-  if test $have_xcurses = yes; then
-    TERMLIBS="-lxcurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try ncursesw.
-if test "x$TERMLIBS" = x; then
-  if test $have_ncursesw = yes; then
-    TERMLIBS="-lncursesw"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try ncurses.
-if test "x$TERMLIBS" = x; then
-  if test $have_ncurses = yes; then
-    TERMLIBS="-lncurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try curses.
-if test "x$TERMLIBS" = x; then
-  if test $have_curses = yes; then
-    TERMLIBS="-lcurses"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try curses & termcap.
-if test "x$TERMLIBS" = x; then
-  if test $have_curses = yes; then
-  if test $have_termcap = yes; then
-    TERMLIBS="-lcurses -ltermcap"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-  fi
-fi
-fi
-
-# -- Try termcap.
-if test "x$TERMLIBS" = x; then
-  if test $have_termcap = yes; then
-    TERMLIBS="-ltermcap"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-# -- Try termlib.
-if test "x$TERMLIBS" = x; then
-  if test $have_termlib = yes; then
-    TERMLIBS="-lcurses -ltermlib"
-    SAVE_LIBS=$LIBS
-    LIBS="$LIBS $TERMLIBS"
-    AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);],
-      [termok=yes], [termok=no])
-    LIBS=$SAVE_LIBS
-    if test $termok = no; then TERMLIBS=""; fi
-  fi
-fi
-
-if test "x$TERMLIBS" = x; then
-  AC_MSG_RESULT(Cannot find terminal libraries - configure failed)
-  exit 1
-fi
-AC_MSG_RESULT(using $TERMLIBS)
-LIBS="$LIBS $TERMLIBS"
-
-# Checks for header files.
-AC_HEADER_STDC
-AC_CHECK_HEADERS([ctype.h errno.h fcntl.h limits.h stdio.h stdlib.h string.h termcap.h termio.h termios.h time.h unistd.h values.h sys/ioctl.h sys/stream.h wctype.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_HEADER_STAT
-AC_C_CONST
-AC_TYPE_OFF_T
-AC_TYPE_SIZE_T
-AC_HEADER_TIME
-
-# Autoheader templates for symbols defined later by AC_DEFINE.
-AH_TEMPLATE([HAVE_GNU_REGEX],
-	[GNU regex library])
-AH_TEMPLATE([HAVE_POSIX_REGCOMP],
-	[POSIX regcomp() and regex.h])
-AH_TEMPLATE([HAVE_PCRE],
-	[PCRE (Perl-compatible regular expression) library])
-AH_TEMPLATE([HAVE_RE_COMP],
-	[BSD re_comp()])
-AH_TEMPLATE([HAVE_REGCMP],
-	[System V regcmp()])
-AH_TEMPLATE([HAVE_V8_REGCOMP],
-	[Henry Spencer V8 regcomp() and regexp.h])
-AH_TEMPLATE([NO_REGEX],
-	[pattern matching is supported, but without metacharacters.])
-AH_TEMPLATE([HAVE_REGEXEC2],
-	[])
-AH_TEMPLATE([HAVE_VOID],
-	[Define HAVE_VOID if your compiler supports the "void" type.])
-AH_TEMPLATE([HAVE_FLOAT],
-	[Define HAVE_FLOAT if your compiler supports the "double" type.])
-AH_TEMPLATE([HAVE_CONST],
-	[Define HAVE_CONST if your compiler supports the "const" modifier.])
-AH_TEMPLATE([HAVE_STAT_INO],
-	[Define HAVE_STAT_INO if your struct stat has st_ino and st_dev.])
-AH_TEMPLATE([HAVE_TIME_T],
-	[Define HAVE_TIME_T if your system supports the "time_t" type.])
-AH_TEMPLATE([HAVE_STRERROR],
-	[Define HAVE_STRERROR if you have the strerror() function.])
-AH_TEMPLATE([HAVE_FILENO],
-	[Define HAVE_FILENO if you have the fileno() macro.])
-AH_TEMPLATE([HAVE_ERRNO],
-	[Define HAVE_ERRNO if you have the errno variable.])
-AH_TEMPLATE([MUST_DEFINE_ERRNO],
-	[Define MUST_DEFINE_ERRNO if you have errno but it is not define in errno.h.])
-AH_TEMPLATE([HAVE_SYS_ERRLIST],
-	[Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable.])
-AH_TEMPLATE([HAVE_OSPEED],
-	[Define HAVE_OSPEED if your termcap library has the ospeed variable.])
-AH_TEMPLATE([MUST_DEFINE_OSPEED],
-	[Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined in termcap.h.])
-AH_TEMPLATE([HAVE_LOCALE],
-	[Define HAVE_LOCALE if you have locale.h and setlocale.])
-AH_TEMPLATE([HAVE_TERMIOS_FUNCS],
-	[Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr.])
-AH_TEMPLATE([HAVE_UPPER_LOWER],
-	[Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower.])
-AH_TEMPLATE([HAVE_WCTYPE],
-	[Define HAVE_WCTYPE if you have iswupper, iswlower, towupper, towlower.])
-AH_TEMPLATE([HAVE_SIGSET_T],
-	[Define HAVE_SIGSET_T you have the sigset_t type.])
-AH_TEMPLATE([HAVE_SIGEMPTYSET],
-	[Define HAVE_SIGEMPTYSET if you have the sigemptyset macro.])
-AH_TEMPLATE([EDIT_PGM],
-	[Define EDIT_PGM to your editor.])
-AH_TEMPLATE([SECURE_COMPILE],
-	[Define SECURE_COMPILE=1 to build a secure version of less.])
-
-# Checks for identifiers.
-AC_TYPE_OFF_T
-AC_MSG_CHECKING(for void)
-AC_TRY_COMPILE(, [void *foo = 0;], 
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_VOID)], [AC_MSG_RESULT(no)])
-AC_MSG_CHECKING(for const)
-AC_TRY_COMPILE(, [const int foo = 0;], 
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_CONST)], [AC_MSG_RESULT(no)])
-AC_MSG_CHECKING(for time_t)
-AC_TRY_COMPILE([#include <time.h>], [time_t t = 0;],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_TIME_T)], [AC_MSG_RESULT(no)])
-AC_MSG_CHECKING(for st_ino in struct stat)
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/stat.h>],
-  [struct stat s; dev_t dev = s.st_dev; ino_t ino = s.st_ino;],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STAT_INO)], [AC_MSG_RESULT(no)])
-
-# Checks for library functions.
-AC_TYPE_SIGNAL
-AC_CHECK_FUNCS([fsync popen _setjmp sigprocmask sigsetmask snprintf stat system fchmod])
-
-# AC_CHECK_FUNCS may not work for inline functions, so test these separately.
-AC_MSG_CHECKING(for memcpy)
-AC_TRY_LINK([
-#if HAVE_STRING_H
-#include <string.h>
-#endif], [memcpy(0,0,0);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MEMCPY)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for strchr)
-AC_TRY_LINK([
-#if HAVE_STRING_H
-#include <string.h>
-#endif], [strchr("x",'x');],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRCHR)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for strstr)
-AC_TRY_LINK([
-#if HAVE_STRING_H
-#include <string.h>
-#endif], [strstr("x","x");],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRSTR)], [AC_MSG_RESULT(no)])
-
-# Some systems have termios.h but not the corresponding functions.
-AC_CHECK_FUNC(tcgetattr, AC_DEFINE(HAVE_TERMIOS_FUNCS))
-
-AC_MSG_CHECKING(for fileno)
-AC_TRY_LINK([
-#if HAVE_STDIO_H
-#include <stdio.h>
-#endif], [static int x; x = fileno(stdin);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FILENO)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for strerror)
-AC_TRY_LINK([
-#if HAVE_STDIO_H
-#include <stdio.h>
-#endif
-#if HAVE_STRING_H
-#include <string.h>
-#endif
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif], [static char *x; x = strerror(0);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRERROR)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for sys_errlist)
-AC_TRY_LINK(, [extern char *sys_errlist[]; static char **x; x = sys_errlist;], 
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYS_ERRLIST)], [AC_MSG_RESULT(no)])
-
-AC_CHECK_TYPES([sigset_t],,,[#include <signal.h>])
-
-AC_MSG_CHECKING(for sigemptyset)
-AC_TRY_LINK([
-#include <signal.h>
-], [sigset_t s; sigemptyset(&s);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SIGEMPTYSET)], [AC_MSG_RESULT(no)])
-
-have_errno=no
-AC_MSG_CHECKING(for errno)
-AC_TRY_LINK([
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif], [static int x; x = errno;], 
-  [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO) have_errno=yes])
-if test $have_errno = no; then
-AC_TRY_LINK([
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif], [extern int errno; static int x; x = errno;], 
-  [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO) AC_DEFINE(MUST_DEFINE_ERRNO)],
-  [AC_MSG_RESULT(no)])
-fi
-
-AC_MSG_CHECKING(for locale)
-AC_TRY_LINK([#include <locale.h>
-#include <ctype.h>
-#include <langinfo.h>], [setlocale(LC_CTYPE,""); isprint(0); iscntrl(0);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_LOCALE)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for ctype functions)
-AC_TRY_LINK([
-#if HAVE_CTYPE_H
-#include <ctype.h>
-#endif], [static int x; x = isupper(x); x = tolower(x); x = toupper(x);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_UPPER_LOWER)], [AC_MSG_RESULT(no)])
-
-AC_MSG_CHECKING(for wctype functions)
-AC_TRY_LINK([#include <wctype.h>], [iswlower(0); iswupper(0); towlower(0); towupper(0);],
-  [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_WCTYPE)], [AC_MSG_RESULT(no)])
-
-# Checks for external variable ospeed in the termcap library.
-have_ospeed=no
-AC_MSG_CHECKING(termcap for ospeed)
-AC_TRY_LINK([
-#include <sys/types.h>
-#if HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#if HAVE_TERMCAP_H
-#include <termcap.h>
-#endif], [ospeed = 0;],
-[AC_MSG_RESULT(yes - in termcap.h); AC_DEFINE(HAVE_OSPEED) have_ospeed=yes])
-if test $have_ospeed = no; then
-AC_TRY_LINK(, [extern short ospeed; ospeed = 0;], 
-  [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_OSPEED) AC_DEFINE(MUST_DEFINE_OSPEED)],
-  [AC_MSG_RESULT(no)])
-fi
-
-# Compile in secure mode?
-AC_ARG_WITH(secure,
-  [  --with-secure  Compile in secure mode],
-  AC_DEFINE(SECURE_COMPILE, 1), AC_DEFINE(SECURE_COMPILE, 0))
-
-# Should we use floating point?
-AC_MSG_CHECKING(for floating point)
-AC_ARG_WITH(no-float,
-  [  --with-no-float  Do not use floating point],
-  WANT_NO_FLOAT=1, WANT_NO_FLOAT=0)
-if test $WANT_NO_FLOAT = 0; then
-  AC_TRY_LINK(, [double f1 = 12.5; double f2 = f1*f1/2.5;], 
-    [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FLOAT)], [AC_MSG_RESULT(no)])
-else
-  AC_MSG_RESULT(disabled by user)
-fi
-
-# Checks for regular expression functions.
-have_regex=no
-have_posix_regex=unknown
-supported_regex=""
-
-# Select a regular expression library.
-WANT_REGEX=auto
-AC_ARG_WITH(regex,
-  [  --with-regex={auto,gnu,pcre,posix,regcmp,re_comp,regcomp,regcomp-local,none}  Select a regular expression library  [auto]],
-  WANT_REGEX="$withval")
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = posix; then
-# Some versions of Solaris have a regcomp() function, but it doesn't work!
-# So we run a test program.  If we're cross-compiling, do it the old way.
-AC_MSG_CHECKING(for POSIX regcomp)
-AC_TRY_RUN([
-#include <sys/types.h>
-#include <regex.h>
-main() { regex_t r; regmatch_t rm; char *text = "xabcy";
-if (regcomp(&r, "abc", 0)) exit(1);
-if (regexec(&r, text, 1, &rm, 0)) exit(1);
-#ifndef __WATCOMC__
-if (rm.rm_so != 1) exit(1); /* check for correct offset */
-#else
-if (rm.rm_sp != text + 1) exit(1); /* check for correct offset */
-#endif
-exit(0); }],
-  have_posix_regex=yes, have_posix_regex=no, have_posix_regex=unknown)
-if test $have_posix_regex = yes; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_POSIX_REGCOMP) supported_regex="$supported_regex posix"
-  have_regex=yes
-elif test $have_posix_regex = unknown; then
-  AC_TRY_LINK([
-#include <sys/types.h>
-#include <regex.h>],
-  [regex_t *r; regfree(r);],
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_POSIX_REGCOMP) have_regex=yes; supported_regex="$supported_regex posix")
-else
-  AC_MSG_RESULT(no)
-fi
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = pcre; then
-AC_CHECK_LIB(pcre, pcre_compile, 
-[AC_DEFINE(HAVE_PCRE) LIBS="$LIBS -lpcre" have_regex=yes; supported_regex="$supported_regex pcre"], [])
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = gnu; then
-AC_CHECK_LIB(c, re_compile_pattern, 
-[AC_DEFINE(HAVE_GNU_REGEX) have_regex=yes; supported_regex="$supported_regex gnu"], [])
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcmp; then
-AC_CHECK_FUNC(regcmp, 
-[AC_DEFINE(HAVE_REGCMP) have_regex=yes; supported_regex="$supported_regex regcmp"],[])
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp; then
-AC_MSG_CHECKING(for V8 regcomp)
-AC_TRY_LINK([
-#include "regexp.h"], [regcomp("");],
-[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_V8_REGCOMP) have_regex=yes; supported_regex="$supported_regex regcomp"],[AC_MSG_RESULT(no)])
-fi
-fi
-
-if test $have_regex = no && test -f ${srcdir}/regexp.c; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp-local; then
-AC_MSG_RESULT(using V8 regcomp -- local source); AC_DEFINE(HAVE_V8_REGCOMP) 
-supported_regex="$supported_regex regcomp-local"
-AC_DEFINE(HAVE_REGEXEC2) REGEX_O='regexp.$(O)' AC_SUBST(REGEX_O) have_regex=yes
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = re_comp; then
-AC_MSG_CHECKING(for re_comp)
-AC_CHECK_FUNC(re_comp,
-[AC_DEFINE(HAVE_RE_COMP) have_regex=yes; supported_regex="$supported_regex re_comp"],[])
-fi
-fi
-
-if test $have_regex = no; then
-if test $WANT_REGEX = auto -o $WANT_REGEX = none; then
-AC_MSG_RESULT(using no regex)
-else
-AC_MSG_WARN(cannot find regular expression library)
-fi
-AC_DEFINE(NO_REGEX) supported_regex="$supported_regex none"
-fi
-
-AC_MSG_RESULT(regular expression library: $supported_regex)
-
-AC_ARG_WITH(editor,
-  [  --with-editor=PROGRAM   use PROGRAM as the default editor [vi]],
-  AC_DEFINE_UNQUOTED(EDIT_PGM, "$withval"), AC_DEFINE(EDIT_PGM, "vi"))
-
-AH_TOP([
-/* Unix definition file for less.  -*- C -*-
- *
- * This file has 3 sections:
- * User preferences.
- * Settings always true on Unix.
- * Settings automatically determined by configure.
- *
- * * * * * *  WARNING  * * * * * *
- * If you edit defines.h by hand, do "touch stamp-h" before you run make
- * so config.status doesn't overwrite your changes.
- */
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- * SECURE_COMPILE is set by the --with-secure configure option.
- */
-#define	SECURE		SECURE_COMPILE
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	(!SECURE)
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#define	GLOB		(!SECURE)
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#define	PIPEC		(!SECURE)
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		".less"
-#define	LESSKEYFILE_SYS		SYSDIR "/sysless"
-#define	DEF_LESSKEYINFILE	".lesskey"
-#define LESSHISTFILE		".lesshst"
-
-
-/* Settings always true on Unix.  */
-
-/*
- * Define MSDOS_COMPILER if compiling under Microsoft C.
- */
-#define	MSDOS_COMPILER	0
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"/"
-
-/*
- * The value returned from tgetent on success.
- * Some HP-UX systems return 0 on success.
- */
-#define TGETENT_OK  1
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H	1
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#undef HAVE_SGSTAT_H
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#define	HAVE_PERROR	1
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL	1
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define	DEF_METACHARS	"; *?\t\n'\"()<>[]|&^`#\\$%=~"
-#define	DEF_METAESCAPE	"\\"
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP	1
-
-/* Define to 1 if you have the memcpy() function. */
-#define HAVE_MEMCPY 1
-
-/* Define to 1 if you have the strchr() function. */
-#define HAVE_STRCHR 1
-
-/* Define to 1 if you have the strstr() function. */
-#define HAVE_STRSTR 1
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines */
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Settings automatically determined by configure.  */
-])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
diff --git a/contrib/less/defines.ds b/contrib/less/defines.ds
deleted file mode 100644
index d85f479..0000000
--- a/contrib/less/defines.ds
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * Copyright (C) 1984-2012  Mark Nudelman
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Less License, as specified in the README file.
- *
- * For more information, see the README file.
- */
-
-
-/* DOS definition file for less.  */
-/*
- * This file has 2 sections:
- * User preferences.
- * Settings always true for MS-DOS systems. 
- */
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- */
-#define	SECURE		0
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	(!SECURE)
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-#define	EDIT_PGM	"vi"
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#ifdef __DJGPP__
-#define	GLOB		(!SECURE)
-#else
-#define	GLOB		0
-#endif
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#ifdef __DJGPP__
-#define	PIPEC		(!SECURE)
-#else
-#define	PIPEC		0
-#endif
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		"_less"
-#define	LESSKEYFILE_SYS		"c:\\_sysless"
-#define	DEF_LESSKEYINFILE	"_lesskey"
-#define LESSHISTFILE		"_lesshst"
-
-
-/* Settings always true for MS-DOS systems.  */
-
-/*
- * Define MSDOS_COMPILER if compiling for MS-DOS.
- */
-#ifdef __DJGPP__
-#define	MSDOS_COMPILER		DJGPPC
-#else
-#ifdef __BORLANDC__
-#define	MSDOS_COMPILER		BORLANDC
-#else
-#define	MSDOS_COMPILER		MSOFTC
-#endif
-#endif
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"\\"
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H	1
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#define HAVE_SGSTAT_H	0
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#define	HAVE_PERROR	1
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL	0
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define	DEF_METACHARS	"; *?\t\n'\"()<>|&"
-#define	DEF_METAESCAPE	""
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP	1
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Define to `long' if <sys/types.h> doesn't define.  */
-#if MSDOS_COMPILER==BORLANDC
-#define	off_t	long 
-#endif
-
-/* Define if you need to in order for stat and other things to work.  */
-/* #undef _POSIX_SOURCE */
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-
-/*
- * Regular expression library.
- * Define exactly one of the following to be 1:
- * HAVE_POSIX_REGCOMP: POSIX regcomp() and regex.h
- * HAVE_RE_COMP: BSD re_comp()
- * HAVE_REGCMP: System V regcmp()
- * HAVE_V8_REGCOMP: Henry Spencer V8 regcomp() and regexp.h
- * NO_REGEX: pattern matching is supported, but without metacharacters.
- */
-/* #undef HAVE_POSIX_REGCOMP */
-/* #undef HAVE_RE_COMP */
-/* #undef HAVE_REGCMP */
-/* #undef HAVE_V8_REGCOMP */
-#if MSDOS_COMPILER==DJGPPC
-#define	HAVE_POSIX_REGCOMP 1
-#else
-#define NO_REGEX 1
-#endif
-
-/* Define HAVE_VOID if your compiler supports the "void" type. */
-#define HAVE_VOID 1
-
-/* Define HAVE_CONST if your compiler supports the "const" modifier. */
-#define HAVE_CONST 1
-
-/* Define HAVE_TIME_T if your system supports the "time_t" type. */
-#define HAVE_TIME_T 1
-
-/* Define HAVE_STRERROR if you have the strerror() function. */
-#define HAVE_STRERROR 1
-
-/* Define HAVE_FILENO if you have the fileno() macro. */
-#define HAVE_FILENO 1
-
-/* Define HAVE_ERRNO if you have the errno variable */
-/* Define MUST_DEFINE_ERRNO if you have errno but it is not defined
- * in errno.h */
-#if MSDOS_COMPILER==MSOFTC || MSDOS_COMPILER==DJGPPC
-#define HAVE_ERRNO 1
-#define MUST_DEFINE_ERRNO 0
-#else
-#define HAVE_ERRNO 1
-#define MUST_DEFINE_ERRNO 1
-#endif
-
-/* Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable */
-#define HAVE_SYS_ERRLIST 1
-
-/* Define HAVE_OSPEED if your termcap library has the ospeed variable */
-/* Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined
- * in termcap.h. */
-#define HAVE_OSPEED 0
-#define MUST_DEFINE_OSPEED 0
-
-/* Define HAVE_LOCALE if you have locale.h and setlocale. */
-#define HAVE_LOCALE 0
-
-/* Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr */
-#define HAVE_TERMIOS_FUNCS 0
-
-/* Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower */
-#define HAVE_UPPER_LOWER 1
-
-/* Define if you have the _setjmp function.  */
-#if MSDOS_COMPILER==MSOFTC || MSDOS_COMPILER==DJGPPC
-#define HAVE__SETJMP	0
-#else
-#define HAVE__SETJMP	1
-#endif
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the popen function.  */
-#if MSDOS_COMPILER==DJGPPC
-#define HAVE_POPEN	1
-#else
-#define HAVE_POPEN	0
-#endif
-
-/* Define if you have the sigsetmask function.  */
-#define HAVE_SIGSETMASK	0
-
-/* Define if you have the sigprocmask function.  */
-#define HAVE_SIGPROCMASK	0
-
-/* Define if you have the sigset_t type and sigemptyset macro */
-#define HAVE_SIGSET_T	0
-#define HAVE_SIGEMPTYSET	0
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 1
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 1
-
-/* Define if you have the system function.  */
-#define HAVE_SYSTEM	1
-
-/* Define if you have the snprintf function.  */
-#define HAVE_SNPRINTF	0
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <wctype.h> header file.  */
-#define HAVE_WCTYPE_H 0
-
-/* Define if you have the <errno.h> header file.  */
-#define HAVE_ERRNO_H 1
-
-/* Define if you have the <fcntl.h> header file.  */
-#define HAVE_FCNTL_H 1
-
-/* Define HAVE_FLOAT if your compiler supports the "double" type. */
-#define HAVE_FLOAT 1
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <stdio.h> header file.  */
-#define HAVE_STDIO_H 1
-
-/* Define if you have the <stdlib> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define if you have the <string.h> header file.  */
-#define HAVE_STRING_H 1
-
-/* Define if you have the <sys/ioctl.h> header file.  */
-#define HAVE_SYS_IOCTL_H 0
-
-/* Define if you have the <sys/ptem.h> header file.  */
-#define HAVE_SYS_PTEM_H	0
-
-/* Define if you have the <sys/stream.h> header file.  */
-#define HAVE_SYS_STREAM_H	0
-
-/* Define if you have the <termcap.h> header file.  */
-#define HAVE_TERMCAP_H	0
-
-/* Define if you have the <termio.h> header file.  */
-#define HAVE_TERMIO_H	0
-
-/* Define if you have the <termios.h> header file.  */
-#define HAVE_TERMIOS_H 0
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#if MSDOS_COMPILER==DJGPPC
-#define HAVE_UNISTD_H 1
-#else
-#define HAVE_UNISTD_H 0
-#endif
-
-/* Define if you have the <values.h> header file.  */
-#if MSDOS_COMPILER==MSOFTC
-#define HAVE_VALUES_H 0
-#else
-#define HAVE_VALUES_H 1
-#endif
-
-#if MSDOS_COMPILER == MSOFTC && _MSC_VER >= 700
-/*
- * The names of these things changed in Microsoft C version 7.0.
- */
-#define videoconfig	_videoconfig
-#define rccoord		_rccoord
-#define O_RDONLY	_O_RDONLY
-#define O_WRONLY	_O_WRONLY
-#define O_APPEND	_O_APPEND
-#define O_BINARY	_O_BINARY
-#define O_TEXT		_O_TEXT
-#define find_t		_find_t
-#define stat		_stat
-#define S_IFMT		_S_IFMT
-#define S_IFDIR		_S_IFDIR
-#define S_IFREG		_S_IFREG
-#define dup		_dup
-#define open		_open
-#define lseek		_lseek
-#define write		_write
-#define creat		_creat
-#define fstat		_fstat
-#define isatty		_isatty
-#define close		_close
-#define read		_read
-#define ungetch		_ungetch
-#define kbhit		_kbhit
-#define getch		_getch
-#endif
diff --git a/contrib/less/defines.h.in b/contrib/less/defines.h.in
deleted file mode 100644
index bfd0ab7..0000000
--- a/contrib/less/defines.h.in
+++ /dev/null
@@ -1,432 +0,0 @@
-/* defines.h.in.  Generated from configure.ac by autoheader.  */
-
-
-/* Unix definition file for less.  -*- C -*-
- *
- * This file has 3 sections:
- * User preferences.
- * Settings always true on Unix.
- * Settings automatically determined by configure.
- *
- * * * * * *  WARNING  * * * * * *
- * If you edit defines.h by hand, do "touch stamp-h" before you run make
- * so config.status doesn't overwrite your changes.
- */
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- * SECURE_COMPILE is set by the --with-secure configure option.
- */
-#define	SECURE		SECURE_COMPILE
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	(!SECURE)
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#define	GLOB		(!SECURE)
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#define	PIPEC		(!SECURE)
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		".less"
-#define	LESSKEYFILE_SYS		SYSDIR "/sysless"
-#define	DEF_LESSKEYINFILE	".lesskey"
-#define LESSHISTFILE		".lesshst"
-
-
-/* Settings always true on Unix.  */
-
-/*
- * Define MSDOS_COMPILER if compiling under Microsoft C.
- */
-#define	MSDOS_COMPILER	0
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"/"
-
-/*
- * The value returned from tgetent on success.
- * Some HP-UX systems return 0 on success.
- */
-#define TGETENT_OK  1
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H	1
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#undef HAVE_SGSTAT_H
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#define	HAVE_PERROR	1
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL	1
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define	DEF_METACHARS	"; *?\t\n'\"()<>[]|&^`#\\$%=~"
-#define	DEF_METAESCAPE	"\\"
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP	1
-
-/* Define to 1 if you have the memcpy() function. */
-#define HAVE_MEMCPY 1
-
-/* Define to 1 if you have the strchr() function. */
-#define HAVE_STRCHR 1
-
-/* Define to 1 if you have the strstr() function. */
-#define HAVE_STRSTR 1
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines */
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Settings automatically determined by configure.  */
-
-
-/* Define EDIT_PGM to your editor. */
-#undef EDIT_PGM
-
-/* Define HAVE_CONST if your compiler supports the "const" modifier. */
-#undef HAVE_CONST
-
-/* Define to 1 if you have the <ctype.h> header file. */
-#undef HAVE_CTYPE_H
-
-/* Define HAVE_ERRNO if you have the errno variable. */
-#undef HAVE_ERRNO
-
-/* Define to 1 if you have the <errno.h> header file. */
-#undef HAVE_ERRNO_H
-
-/* Define to 1 if you have the `fchmod' function. */
-#undef HAVE_FCHMOD
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#undef HAVE_FCNTL_H
-
-/* Define HAVE_FILENO if you have the fileno() macro. */
-#undef HAVE_FILENO
-
-/* Define HAVE_FLOAT if your compiler supports the "double" type. */
-#undef HAVE_FLOAT
-
-/* Define to 1 if you have the `fsync' function. */
-#undef HAVE_FSYNC
-
-/* GNU regex library */
-#undef HAVE_GNU_REGEX
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the <limits.h> header file. */
-#undef HAVE_LIMITS_H
-
-/* Define HAVE_LOCALE if you have locale.h and setlocale. */
-#undef HAVE_LOCALE
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define HAVE_OSPEED if your termcap library has the ospeed variable. */
-#undef HAVE_OSPEED
-
-/* PCRE (Perl-compatible regular expression) library */
-#undef HAVE_PCRE
-
-/* Define to 1 if you have the `popen' function. */
-#undef HAVE_POPEN
-
-/* POSIX regcomp() and regex.h */
-#undef HAVE_POSIX_REGCOMP
-
-/* System V regcmp() */
-#undef HAVE_REGCMP
-
-/* */
-#undef HAVE_REGEXEC2
-
-/* BSD re_comp() */
-#undef HAVE_RE_COMP
-
-/* Define HAVE_SIGEMPTYSET if you have the sigemptyset macro. */
-#undef HAVE_SIGEMPTYSET
-
-/* Define to 1 if you have the `sigprocmask' function. */
-#undef HAVE_SIGPROCMASK
-
-/* Define to 1 if you have the `sigsetmask' function. */
-#undef HAVE_SIGSETMASK
-
-/* Define to 1 if the system has the type `sigset_t'. */
-#undef HAVE_SIGSET_T
-
-/* Define to 1 if you have the `snprintf' function. */
-#undef HAVE_SNPRINTF
-
-/* Define to 1 if you have the `stat' function. */
-#undef HAVE_STAT
-
-/* Define HAVE_STAT_INO if your struct stat has st_ino and st_dev. */
-#undef HAVE_STAT_INO
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdio.h> header file. */
-#undef HAVE_STDIO_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define HAVE_STRERROR if you have the strerror() function. */
-#undef HAVE_STRERROR
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the `system' function. */
-#undef HAVE_SYSTEM
-
-/* Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable. */
-#undef HAVE_SYS_ERRLIST
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#undef HAVE_SYS_IOCTL_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/stream.h> header file. */
-#undef HAVE_SYS_STREAM_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <termcap.h> header file. */
-#undef HAVE_TERMCAP_H
-
-/* Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr. */
-#undef HAVE_TERMIOS_FUNCS
-
-/* Define to 1 if you have the <termios.h> header file. */
-#undef HAVE_TERMIOS_H
-
-/* Define to 1 if you have the <termio.h> header file. */
-#undef HAVE_TERMIO_H
-
-/* Define to 1 if you have the <time.h> header file. */
-#undef HAVE_TIME_H
-
-/* Define HAVE_TIME_T if your system supports the "time_t" type. */
-#undef HAVE_TIME_T
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower. */
-#undef HAVE_UPPER_LOWER
-
-/* Henry Spencer V8 regcomp() and regexp.h */
-#undef HAVE_V8_REGCOMP
-
-/* Define to 1 if you have the <values.h> header file. */
-#undef HAVE_VALUES_H
-
-/* Define HAVE_VOID if your compiler supports the "void" type. */
-#undef HAVE_VOID
-
-/* Define HAVE_WCTYPE if you have iswupper, iswlower, towupper, towlower. */
-#undef HAVE_WCTYPE
-
-/* Define to 1 if you have the <wctype.h> header file. */
-#undef HAVE_WCTYPE_H
-
-/* Define to 1 if you have the `_setjmp' function. */
-#undef HAVE__SETJMP
-
-/* Define MUST_DEFINE_ERRNO if you have errno but it is not define in errno.h.
-   */
-#undef MUST_DEFINE_ERRNO
-
-/* Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined in
-   termcap.h. */
-#undef MUST_DEFINE_OSPEED
-
-/* pattern matching is supported, but without metacharacters. */
-#undef NO_REGEX
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#undef RETSIGTYPE
-
-/* Define SECURE_COMPILE=1 to build a secure version of less. */
-#undef SECURE_COMPILE
-
-/* Define to 1 if the `S_IS*' macros in <sys/stat.h> do not work properly. */
-#undef STAT_MACROS_BROKEN
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#undef TIME_WITH_SYS_TIME
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-#undef _FILE_OFFSET_BITS
-
-/* Define for large files, on AIX-style hosts. */
-#undef _LARGE_FILES
-
-/* Define to empty if `const' does not conform to ANSI C. */
-#undef const
-
-/* Define to `long int' if <sys/types.h> does not define. */
-#undef off_t
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t
diff --git a/contrib/less/defines.o2 b/contrib/less/defines.o2
deleted file mode 100644
index 578091d..0000000
--- a/contrib/less/defines.o2
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * Copyright (C) 1984-2012  Mark Nudelman
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Less License, as specified in the README file.
- *
- * For more information, see the README file.
- */
-
-
-/* OS/2 definition file for less.  */
-/*
- * This file has 2 sections:
- * User preferences.
- * Settings always true for the emx compiler for OS/2 systems. 
- */
-
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- */
-#define	SECURE		0
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	(!SECURE)
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-#define	EDIT_PGM	"vi"
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#define	GLOB		(!SECURE)
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#define	PIPEC		(!SECURE)
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		"less.ini"
-#define	LESSKEYFILE_SYS		"C:\\sysless.ini"
-#define	DEF_LESSKEYINFILE	"lesskey.ini"
-#define LESSHISTFILE		"lesshst.ini"
-
-
-/* Settings always true for the emx compiler for OS/2 systems.  */
-#define OS2 1
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"\\"
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H	1
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#define HAVE_SGSTAT_H	0
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#define	HAVE_PERROR	1
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL	0
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define	DEF_METACHARS	"; *?\t\n'\"()<>|&"
-#define	DEF_METAESCAPE	""
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP	1
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Define to `long' if <sys/types.h> doesn't define.  */
-/* #define	off_t	long */
-
-/* Define if you need to in order for stat and other things to work.  */
-/* #undef _POSIX_SOURCE */
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-
-/*
- * Regular expression library.
- * Define exactly one of the following to be 1:
- * HAVE_POSIX_REGCOMP: POSIX regcomp() and regex.h
- * HAVE_RE_COMP: BSD re_comp()
- * HAVE_REGCMP: System V regcmp()
- * HAVE_V8_REGCOMP: Henry Spencer V8 regcomp() and regexp.h
- * NO_REGEX: pattern matching is supported, but without metacharacters.
- */
-/* #undef HAVE_POSIX_REGCOMP */
-/* #undef HAVE_RE_COMP */
-/* #undef HAVE_REGCMP */
-#define HAVE_V8_REGCOMP 1
-/* #undef NO_REGEX */
-#define HAVE_REGEXEC2 1
-
-/* Define HAVE_VOID if your compiler supports the "void" type. */
-#define HAVE_VOID 1
-
-/* Define HAVE_CONST if your compiler supports the "const" modifier. */
-#define HAVE_CONST 1
-
-/* Define HAVE_TIME_T if your system supports the "time_t" type. */
-#define HAVE_TIME_T 1
-
-/* Define HAVE_STRERROR if you have the strerror() function. */
-#define HAVE_STRERROR 1
-
-/* Define HAVE_FILENO if you have the fileno() macro. */
-#define HAVE_FILENO 1
-
-/* Define HAVE_ERRNO if you have the errno variable */
-/* Define MUST_DEFINE_ERRNO if you have errno but it is not define 
- * in errno.h */
-#define HAVE_ERRNO 1
-/* #undef MUST_DEFINE_ERRNO */
-
-/* Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable */
-#define HAVE_SYS_ERRLIST 1
-
-/* Define HAVE_OSPEED if your termcap library has the ospeed variable */
-#define HAVE_OSPEED 1
-/* Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined
- * in termcap.h. */
-#define MUST_DEFINE_OSPEED 0
-
-/* Define HAVE_LOCALE if you have locale.h and setlocale. */
-#define HAVE_LOCALE 1
-
-/* Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr */
-#define HAVE_TERMIOS_FUNCS 1
-
-/* Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower */
-#define HAVE_UPPER_LOWER 1
-
-/* Define if you have the _setjmp function.  */
-#define HAVE__SETJMP	0
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the popen function.  */
-#define HAVE_POPEN 1
-
-/* Define if you have the sigsetmask function.  */
-#define HAVE_SIGSETMASK	0
-
-/* Define if you have the sigprocmask function.  */
-#define HAVE_SIGPROCMASK	1
-
-/* Define if you have the sigset_t type and sigemptyset macro */
-#define HAVE_SIGSET_T	1
-#define HAVE_SIGEMPTYSET	1
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 1
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 1
-
-/* Define if you have the strstr function.  */
-#define HAVE_STRSTR	1
-
-/* Define if you have the system function.  */
-#define HAVE_SYSTEM	1
-
-/* Define if you have the snprintf function.  */
-#define HAVE_SNPRINTF	0
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <wctype.h> header file.  */
-#define HAVE_WCTYPE_H 0
-
-/* Define if you have the <errno.h> header file.  */
-#define HAVE_ERRNO_H 1
-
-/* Define if you have the <fcntl.h> header file.  */
-#define HAVE_FCNTL_H 1
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <stdio.h> header file.  */
-#define HAVE_STDIO_H 1
-
-/* Define if you have the <stdlib> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define if you have the <string.h> header file.  */
-#define HAVE_STRING_H 1
-
-/* Define if you have the <sys/ioctl.h> header file.  */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define if you have the <sys/ptem.h> header file.  */
-#define HAVE_SYS_PTEM_H	0
-
-/* Define if you have the <sys/stream.h> header file.  */
-#define HAVE_SYS_STREAM_H	0
-
-/* Define if you have the <termcap.h> header file.  */
-#define HAVE_TERMCAP_H 1
-
-/* Define if you have the <termio.h> header file.  */
-#define HAVE_TERMIO_H	1
-
-/* Define if you have the <termios.h> header file.  */
-#define HAVE_TERMIOS_H 1
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 1
-
-/* Define if you have the <values.h> header file.  */
-#define HAVE_VALUES_H 0
diff --git a/contrib/less/defines.o9 b/contrib/less/defines.o9
deleted file mode 100644
index 507ec19..0000000
--- a/contrib/less/defines.o9
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Copyright (C) 1984-2012  Mark Nudelman
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Less License, as specified in the README file.
- *
- * For more information, see the README file.
- */
-
-
-/* OS/9 definition file for less.  */
-/*
- * This file has 2 sections:
- * User preferences.
- * Settings always true for OS-9 systems. 
- */
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- */
-#define	SECURE		0
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	1
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-#define	EDIT_PGM	"umacs"
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#define	GLOB		(!SECURE)
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#define	PIPEC		(!SECURE)
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		".less"
-#define	LESSKEYFILE_SYS		"/.sysless"
-#define	DEF_LESSKEYINFILE	".lesskey"
-#define LESSHISTFILE		".lesshst"
-
-
-/* Settings always true for OS-9.  */
-
-/* This is not needed; it is defined by the compiler. */
-/* #define _OSK 1 */
-#define OS2 		0
-#define MSDOS_COMPILER	0
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"/"
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H 0
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#define HAVE_SGSTAT_H	1
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#if _OSK_MWC32
-#define	HAVE_PERROR	0
-#else
-#define	HAVE_PERROR	1
-#endif
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL 0
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define DEF_METACHARS   "; \t\n'\"()<>|&^`#\\"
-#define DEF_METAESCAPE  "\\"
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP 0
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Define to `long' if <sys/types.h> doesn't define.  */
-#define off_t long
-
-/* Define if you need to in order for stat and other things to work.  */
-#define _POSIX_SOURCE 0
-
-/* Define as the return type of signal handlers (int or void).  */
-#if _OSK_MWC32
-#define RETSIGTYPE int
-#else
-#define RETSIGTYPE void
-#endif
-
-
-/*
- * Regular expression library.
- * Define exactly one of the following to be 1:
- * HAVE_POSIX_REGCOMP: POSIX regcomp() and regex.h
- * HAVE_RE_COMP: BSD re_comp()
- * HAVE_REGCMP: System V regcmp()
- * HAVE_V8_REGCOMP: Henry Spencer V8 regcomp() and regexp.h
- * NO_REGEX: pattern matching is supported, but without metacharacters.
- */
-#define HAVE_POSIX_REGCOMP 0
-#define HAVE_RE_COMP 0
-#define HAVE_REGCMP 0
-#define HAVE_V8_REGCOMP 1
-#define NO_REGEX 0
-#define HAVE_REGEXEC2 1
-
-/* Define HAVE_VOID if your compiler supports the "void" type. */
-#define HAVE_VOID 1
-
-/* Define HAVE_CONST if your compiler supports the "const" modifier. */
-#define HAVE_CONST 0
-
-/* Define HAVE_TIME_T if your system supports the "time_t" type. */
-#define HAVE_TIME_T 1
-
-/* Define HAVE_STRERROR if you have the strerror() function. */
-#define HAVE_STRERROR 0
-
-/* Define HAVE_FILENO if you have the fileno() macro. */
-#define HAVE_FILENO 1
-
-/* Define HAVE_ERRNO if you have the errno variable */
-/* Define MUST_DEFINE_ERRNO if you have errno but it is not define 
- * in errno.h */
-#define HAVE_ERRNO 1
-#define MUST_DEFINE_ERRNO 0
-
-/* Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable */
-#define HAVE_SYS_ERRLIST 0
-
-/* Define HAVE_OSPEED if your termcap library has the ospeed variable */
-/* Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined
- * in termcap.h. */
-#define HAVE_OSPEED 0
-#define MUST_DEFINE_OSPEED 0
-
-/* Define HAVE_LOCALE if you have locale.h and setlocale. */
-#define HAVE_LOCALE 0
-
-/* Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr */
-#define HAVE_TERMIOS_FUNCS 0
-
-/* Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower */
-#define HAVE_UPPER_LOWER 1
-
-/* Define if you have the _setjmp function.  */
-#define HAVE__SETJMP 1
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the popen function.  */
-#define HAVE_POPEN 1
-
-/* Define if you have the sigsetmask function.  */
-#define HAVE_SIGSETMASK 0
-
-/* Define if you have the sigprocmask function.  */
-#define HAVE_SIGPROCMASK	0
-
-/* Define if you have the sigset_t type and sigemptyset macro */
-#define HAVE_SIGSET_T	0
-#define HAVE_SIGEMPTYSET	0
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 0
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 0
-
-/* Define if you have the system function.  */
-#define HAVE_SYSTEM 1
-
-/* Define if you have the snprintf function.  */
-#define HAVE_SNPRINTF	0
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <wctype.h> header file.  */
-#define HAVE_WCTYPE_H 0
-
-/* Define if you have the <errno.h> header file.  */
-#define HAVE_ERRNO_H 1
-
-/* Define if you have the <fcntl.h> header file.  */
-#define HAVE_FCNTL_H 0
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H  0
-
-/* Define if you have the <stdio.h> header file.  */
-#define HAVE_STDIO_H 1
-
-/* Define if you have the <string.h> header file.  */
-#define HAVE_STRING_H 1
-
-/* Define if you have the <stdlib> header file. */
-#if _OSK_MWC32
-#define HAVE_STDLIB_H 0
-#else
-#define HAVE_STDLIB_H 1
-#endif
-
-/* Define if you have the <sys/ioctl.h> header file.  */
-#define HAVE_SYS_IOCTL_H 0
-
-/* Define if you have the <sys/ptem.h> header file.  */
-#define HAVE_SYS_PTEM_H 0
-
-/* Define if you have the <sys/stream.h> header file.  */
-#define HAVE_SYS_STREAM_H 0
-
-/* Define if you have the <termcap.h> header file.  */
-#define HAVE_TERMCAP_H 1
-
-/* Define if you have the <termio.h> header file.  */
-#define HAVE_TERMIO_H 0
-
-/* Define if you have the <termios.h> header file.  */
-#define HAVE_TERMIOS_H 0
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 0
-
-/* Define if you have the <values.h> header file.  */
-#define HAVE_VALUES_H 0
diff --git a/contrib/less/defines.wn b/contrib/less/defines.wn
deleted file mode 100644
index dd92261..0000000
--- a/contrib/less/defines.wn
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * Copyright (C) 1984-2012  Mark Nudelman
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Less License, as specified in the README file.
- *
- * For more information, see the README file.
- */
-
-
-/* Windows definition file for less.  */
-/*
- * This file has 2 sections:
- * User preferences.
- * Settings always true for Windows systems. 
- */
-
-
-/* User preferences.  */
-
-/*
- * SECURE is 1 if you wish to disable a bunch of features in order to
- * be safe to run by unprivileged users.
- */
-#define	SECURE		0
-
-/*
- * SHELL_ESCAPE is 1 if you wish to allow shell escapes.
- * (This is possible only if your system supplies the system() function.)
- */
-#define	SHELL_ESCAPE	(!SECURE)
-
-/*
- * EXAMINE is 1 if you wish to allow examining files by name from within less.
- */
-#define	EXAMINE		(!SECURE)
-
-/*
- * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key
- * to complete filenames at prompts.
- */
-#define	TAB_COMPLETE_FILENAME	(!SECURE)
-
-/*
- * CMD_HISTORY is 1 if you wish to allow keys to cycle through
- * previous commands at prompts.
- */
-#define	CMD_HISTORY	1
-
-/*
- * HILITE_SEARCH is 1 if you wish to have search targets to be 
- * displayed in standout mode.
- */
-#define	HILITE_SEARCH	1
-
-/*
- * EDITOR is 1 if you wish to allow editor invocation (the "v" command).
- * (This is possible only if your system supplies the system() function.)
- * EDIT_PGM is the name of the (default) editor to be invoked.
- */
-#define	EDITOR		(!SECURE)
-#define	EDIT_PGM	"edit"
-
-/*
- * TAGS is 1 if you wish to support tag files.
- */
-#define	TAGS		(!SECURE)
-
-/*
- * USERFILE is 1 if you wish to allow a .less file to specify 
- * user-defined key bindings.
- */
-#define	USERFILE	(!SECURE)
-
-/*
- * GLOB is 1 if you wish to have shell metacharacters expanded in filenames.
- * This will generally work if your system provides the "popen" function
- * and the "echo" shell command.
- */
-#define	GLOB		0
-
-/*
- * PIPEC is 1 if you wish to have the "|" command
- * which allows the user to pipe data into a shell command.
- */
-#define	PIPEC		1
-
-/*
- * LOGFILE is 1 if you wish to allow the -l option (to create log files).
- */
-#define	LOGFILE		(!SECURE)
-
-/*
- * GNU_OPTIONS is 1 if you wish to support the GNU-style command
- * line options --help and --version.
- */
-#define	GNU_OPTIONS	1
-
-/*
- * ONLY_RETURN is 1 if you want RETURN to be the only input which
- * will continue past an error message.
- * Otherwise, any key will continue past an error message.
- */
-#define	ONLY_RETURN	0
-
-/*
- * LESSKEYFILE is the filename of the default lesskey output file 
- * (in the HOME directory).
- * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file.
- * DEF_LESSKEYINFILE is the filename of the default lesskey input 
- * (in the HOME directory).
- * LESSHISTFILE is the filename of the history file
- * (in the HOME directory).
- */
-#define	LESSKEYFILE		"_less"
-#define	LESSKEYFILE_SYS		"c:\\_sysless"
-#define	DEF_LESSKEYINFILE	"_lesskey"
-#define LESSHISTFILE		"_lesshst"
-
-
-/* Settings always true for Windows systems.  */
-
-#define MSDOS_COMPILER	WIN32C
-
-/*
- * Pathname separator character.
- */
-#define	PATHNAME_SEP	"\\"
-
-/*
- * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>.
- */
-#define HAVE_SYS_TYPES_H	1
-
-/*
- * Define if you have the <sgstat.h> header file.
- */
-#define HAVE_SGSTAT_H	0
-
-/*
- * HAVE_PERROR is 1 if your system has the perror() call.
- * (Actually, if it has sys_errlist, sys_nerr and errno.)
- */
-#define	HAVE_PERROR	1
-
-/*
- * HAVE_TIME is 1 if your system has the time() call.
- */
-#define	HAVE_TIME	1
-
-/*
- * HAVE_SHELL is 1 if your system supports a SHELL command interpreter.
- */
-#define	HAVE_SHELL	0
-
-/*
- * Default shell metacharacters and meta-escape character.
- */
-#define	DEF_METACHARS	"; *?\t\n'\"()<>|&"
-#define	DEF_METAESCAPE	""
-
-/* 
- * HAVE_DUP is 1 if your system has the dup() call.
- */
-#define	HAVE_DUP	1
-
-/*
- * Sizes of various buffers.
- */
-#if 0 /* old sizes for small memory machines
-#define	CMDBUF_SIZE	512	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	100	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	200	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	512	/* Max size of line in tags file */
-#define	TABSTOP_MAX	32	/* Max number of custom tab stops */
-#else /* more reasonable sizes for modern machines */
-#define	CMDBUF_SIZE	2048	/* Buffer for multichar commands */
-#define	UNGOT_SIZE	200	/* Max chars to unget() */
-#define	LINEBUF_SIZE	1024	/* Initial max size of line in input file */
-#define	OUTBUF_SIZE	1024	/* Output buffer */
-#define	PROMPT_SIZE	2048	/* Max size of prompt string */
-#define	TERMBUF_SIZE	2048	/* Termcap buffer for tgetent */
-#define	TERMSBUF_SIZE	1024	/* Buffer to hold termcap strings */
-#define	TAGLINE_SIZE	1024	/* Max size of line in tags file */
-#define	TABSTOP_MAX	128	/* Max number of custom tab stops */
-#endif
-
-/* Define to `long' if <sys/types.h> doesn't define.  */
-/* #define	off_t	long */
-
-/* Define if you need to in order for stat and other things to work.  */
-/* #undef _POSIX_SOURCE */
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-
-/*
- * Regular expression library.
- * Define exactly one of the following to be 1:
- * HAVE_POSIX_REGCOMP: POSIX regcomp() and regex.h
- * HAVE_RE_COMP: BSD re_comp()
- * HAVE_REGCMP: System V regcmp()
- * HAVE_V8_REGCOMP: Henry Spencer V8 regcomp() and regexp.h
- * NO_REGEX: pattern matching is supported, but without metacharacters.
- */
-/* #undef HAVE_POSIX_REGCOMP */
-/* #undef HAVE_RE_COMP */
-/* #undef HAVE_REGCMP */
-#define HAVE_V8_REGCOMP 1
-/* #undef NO_REGEX */
-#define HAVE_REGEXEC2 1
-
-/* Define HAVE_VOID if your compiler supports the "void" type. */
-#define HAVE_VOID 1
-
-/* Define HAVE_CONST if your compiler supports the "const" modifier. */
-#define HAVE_CONST 1
-
-/* Define HAVE_TIME_T if your system supports the "time_t" type. */
-#define HAVE_TIME_T 1
-
-/* Define HAVE_STRERROR if you have the strerror() function. */
-#define HAVE_STRERROR 1
-
-/* Define HAVE_FILENO if you have the fileno() macro. */
-#define HAVE_FILENO 1
-
-/* Define HAVE_ERRNO if you have the errno variable */
-/* Define MUST_DEFINE_ERRNO if you have errno but it is not define 
- * in errno.h */
-#define HAVE_ERRNO 1
-#define MUST_DEFINE_ERRNO 1
-
-/* Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable */
-#define HAVE_SYS_ERRLIST 1
-
-/* Define HAVE_OSPEED if your termcap library has the ospeed variable */
-#define HAVE_OSPEED 0
-/* Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined
- * in termcap.h. */
-#define MUST_DEFINE_OSPEED 0
-
-/* Define HAVE_LOCALE if you have locale.h and setlocale. */
-#define HAVE_LOCALE 0
-
-/* Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr */
-#define HAVE_TERMIOS_FUNCS 0
-
-/* Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower */
-#define HAVE_UPPER_LOWER 1
-
-/* Define if you have the _setjmp function.  */
-#define HAVE__SETJMP	1
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
-
-/* Define if you have the popen function.  */
-#define HAVE_POPEN 1
-
-/* Define if you have the sigsetmask function.  */
-#define HAVE_SIGSETMASK	0
-
-/* Define if you have the sigprocmask function.  */
-#define HAVE_SIGPROCMASK	0
-
-/* Define if you have the sigset_t type and sigemptyset macro */
-#define HAVE_SIGSET_T	0
-#define HAVE_SIGEMPTYSET	0
-
-/* Define if you have the stat function.  */
-#define HAVE_STAT 1
-
-/* Define if you have the strchr function.  */
-#define HAVE_STRCHR 1
-
-/* Define if you have the system function.  */
-#define HAVE_SYSTEM	1
-
-/* Define if you have the snprintf function.  */
-#define HAVE_SNPRINTF	1
-
-/* Define if you have the <ctype.h> header file.  */
-#define HAVE_CTYPE_H 1
-
-/* Define if you have the <wctype.h> header file.  */
-#define HAVE_WCTYPE_H 1
-
-/* Define if you have the <errno.h> header file.  */
-#define HAVE_ERRNO_H 1
-
-/* Define if you have the <fcntl.h> header file.  */
-#define HAVE_FCNTL_H 1
-
-/* Define HAVE_FLOAT if your compiler supports the "double" type. */
-#define HAVE_FLOAT 1
-
-/* Define if you have the <limits.h> header file.  */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <stdio.h> header file.  */
-#define HAVE_STDIO_H 1
-
-/* Define if you have the <string.h> header file.  */
-#define HAVE_STRING_H 1
-
-/* Define if you have the <stdlib> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define if you have the <sys/ioctl.h> header file.  */
-#define HAVE_SYS_IOCTL_H 0
-
-/* Define if you have the <sys/ptem.h> header file.  */
-#define HAVE_SYS_PTEM_H	0
-
-/* Define if you have the <sys/stream.h> header file.  */
-#define HAVE_SYS_STREAM_H	0
-
-/* Define if you have the <termcap.h> header file.  */
-#define HAVE_TERMCAP_H	0
-
-/* Define if you have the <termio.h> header file.  */
-#define HAVE_TERMIO_H	0
-
-/* Define if you have the <termios.h> header file.  */
-#define HAVE_TERMIOS_H 0
-
-/* Define if you have the <time.h> header file.  */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 0
-
-/* Define if you have the <values.h> header file.  */
-#ifdef _MSC_VER
-#define HAVE_VALUES_H 0
-#else
-#define HAVE_VALUES_H 1
-#endif
-
-#define	popen	_popen
-#define	pclose	_pclose
-#define snprintf	_snprintf
-
-#pragma warning(disable:4996)
diff --git a/contrib/less/install.sh b/contrib/less/install.sh
deleted file mode 100755
index 41ea84f..0000000
--- a/contrib/less/install.sh
+++ /dev/null
@@ -1,119 +0,0 @@
-#!/bin/sh
-
-#
-# install - install a program, script, or datafile
-# This comes from X11R5; it is not part of GNU.
-#
-# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-#
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-
-instcmd="$mvprog"
-chmodcmd=""
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-
-while [ x"$1" != x ]; do
-    case $1 in
-	-c) instcmd="$cpprog"
-	    shift
-	    continue;;
-
-	-m) chmodcmd="$chmodprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-o) chowncmd="$chownprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-g) chgrpcmd="$chgrpprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-s) stripcmd="$stripprog"
-	    shift
-	    continue;;
-
-	*)  if [ x"$src" = x ]
-	    then
-		src=$1
-	    else
-		dst=$1
-	    fi
-	    shift
-	    continue;;
-    esac
-done
-
-if [ x"$src" = x ]
-then
-	echo "install:  no input file specified"
-	exit 1
-fi
-
-if [ x"$dst" = x ]
-then
-	echo "install:  no destination specified"
-	exit 1
-fi
-
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
-if [ -d $dst ]
-then
-	dst="$dst"/`basename $src`
-fi
-
-# Make a temp file name in the proper directory.
-
-dstdir=`dirname $dst`
-dsttmp=$dstdir/_inst.$$_
-
-# Move or copy the file name to the temp name
-
-$doit $instcmd $src $dsttmp
-
-# and set any options; do chmod last to preserve setuid bits
-
-if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; fi
-if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; fi
-if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; fi
-if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; fi
-
-# Now rename the file to the real destination.
-
-$doit $rmcmd $dst
-$doit $mvcmd $dsttmp $dst
-
-
-exit 0
diff --git a/contrib/less/less.man b/contrib/less/less.man
deleted file mode 100644
index 7b9a666..0000000
--- a/contrib/less/less.man
+++ /dev/null
@@ -1,1621 +0,0 @@
-LESS(1)                                                                LESS(1)
-
-
-
-NAME
-       less - opposite of more
-
-SYNOPSIS
-       less -?
-       less --help
-       less -V
-       less --version
-       less [-[+]aABcCdeEfFgGiIJKLmMnNqQrRsSuUVwWX~]
-            [-b space] [-h lines] [-j line] [-k keyfile]
-            [-{oO} logfile] [-p pattern] [-P prompt] [-t tag]
-            [-T tagsfile] [-x tab,...] [-y lines] [-[z] lines]
-            [-# shift] [+[+]cmd] [--] [filename]...
-       (See  the  OPTIONS section for alternate option syntax with long option
-       names.)
-
-
-DESCRIPTION
-       Less is a program similar to more (1), but which allows backward  move-
-       ment in the file as well as forward movement.  Also, less does not have
-       to read the entire input file before  starting,  so  with  large  input
-       files  it  starts  up  faster than text editors like vi (1).  Less uses
-       termcap (or terminfo on some systems), so it can run on  a  variety  of
-       terminals.   There is even limited support for hardcopy terminals.  (On
-       a hardcopy terminal, lines which should be printed at the  top  of  the
-       screen are prefixed with a caret.)
-
-       Commands  are based on both more and vi.  Commands may be preceded by a
-       decimal number, called N in the descriptions below.  The number is used
-       by some commands, as indicated.
-
-
-COMMANDS
-       In  the following descriptions, ^X means control-X.  ESC stands for the
-       ESCAPE  key;  for  example  ESC-v  means  the  two  character  sequence
-       "ESCAPE", then "v".
-
-       h or H Help:  display  a  summary of these commands.  If you forget all
-              the other commands, remember this one.
-
-       SPACE or ^V or f or ^F
-              Scroll forward N  lines,  default  one  window  (see  option  -z
-              below).   If  N  is  more  than  the screen size, only the final
-              screenful is displayed.  Warning: some systems use ^V as a  spe-
-              cial literalization character.
-
-       z      Like  SPACE,  but  if  N is specified, it becomes the new window
-              size.
-
-       ESC-SPACE
-              Like SPACE, but scrolls a full screenful,  even  if  it  reaches
-              end-of-file in the process.
-
-       ENTER or RETURN or ^N or e or ^E or j or ^J
-              Scroll  forward N lines, default 1.  The entire N lines are dis-
-              played, even if N is more than the screen size.
-
-       d or ^D
-              Scroll forward N lines, default one half of the screen size.  If
-              N  is specified, it becomes the new default for subsequent d and
-              u commands.
-
-       b or ^B or ESC-v
-              Scroll backward N lines,  default  one  window  (see  option  -z
-              below).   If  N  is  more  than  the screen size, only the final
-              screenful is displayed.
-
-       w      Like ESC-v, but if N is specified, it  becomes  the  new  window
-              size.
-
-       y or ^Y or ^P or k or ^K
-              Scroll backward N lines, default 1.  The entire N lines are dis-
-              played, even if N is more than the screen size.   Warning:  some
-              systems use ^Y as a special job control character.
-
-       u or ^U
-              Scroll  backward  N  lines, default one half of the screen size.
-              If N is specified, it becomes the new default for  subsequent  d
-              and u commands.
-
-       ESC-) or RIGHTARROW
-              Scroll  horizontally right N characters, default half the screen
-              width (see the -# option).  If  a  number  N  is  specified,  it
-              becomes  the  default  for  future RIGHTARROW and LEFTARROW com-
-              mands.  While the text is scrolled, it acts  as  though  the  -S
-              option (chop lines) were in effect.
-
-       ESC-( or LEFTARROW
-              Scroll  horizontally  left N characters, default half the screen
-              width (see the -# option).  If  a  number  N  is  specified,  it
-              becomes  the  default  for  future RIGHTARROW and LEFTARROW com-
-              mands.
-
-       r or ^R or ^L
-              Repaint the screen.
-
-       R      Repaint the screen, discarding any buffered  input.   Useful  if
-              the file is changing while it is being viewed.
-
-       F      Scroll  forward, and keep trying to read when the end of file is
-              reached.  Normally this command would be used  when  already  at
-              the  end of the file.  It is a way to monitor the tail of a file
-              which is growing while it is being  viewed.   (The  behavior  is
-              similar to the "tail -f" command.)
-
-       ESC-F  Like  F,  but  as soon as a line is found which matches the last
-              search pattern, the terminal bell is rung and forward  scrolling
-              stops.
-
-       g or < or ESC-<
-              Go to line N in the file, default 1 (beginning of file).  (Warn-
-              ing: this may be slow if N is large.)
-
-       G or > or ESC->
-              Go to line N in the file, default the end of the  file.   (Warn-
-              ing:  this  may  be slow if N is large, or if N is not specified
-              and standard input, rather than a file, is being read.)
-
-       p or % Go to a position N percent into the file.  N should be between 0
-              and 100, and may contain a decimal point.
-
-       P      Go to the line containing byte offset N in the file.
-
-       {      If a left curly bracket appears in the top line displayed on the
-              screen, the { command  will  go  to  the  matching  right  curly
-              bracket.   The matching right curly bracket is positioned on the
-              bottom line of the screen.  If there is more than one left curly
-              bracket  on  the top line, a number N may be used to specify the
-              N-th bracket on the line.
-
-       }      If a right curly bracket appears in the bottom line displayed on
-              the  screen,  the  }  command will go to the matching left curly
-              bracket.  The matching left curly bracket is positioned  on  the
-              top  line  of the screen.  If there is more than one right curly
-              bracket on the top line, a number N may be used to  specify  the
-              N-th bracket on the line.
-
-       (      Like {, but applies to parentheses rather than curly brackets.
-
-       )      Like }, but applies to parentheses rather than curly brackets.
-
-       [      Like  {, but applies to square brackets rather than curly brack-
-              ets.
-
-       ]      Like }, but applies to square brackets rather than curly  brack-
-              ets.
-
-       ESC-^F Followed  by two characters, acts like {, but uses the two char-
-              acters as open and close brackets, respectively.   For  example,
-              "ESC  ^F < >" could be used to go forward to the > which matches
-              the < in the top displayed line.
-
-       ESC-^B Followed by two characters, acts like }, but uses the two  char-
-              acters  as  open and close brackets, respectively.  For example,
-              "ESC ^B < >" could be used to go backward to the < which matches
-              the > in the bottom displayed line.
-
-       m      Followed  by  any  lowercase  letter, marks the current position
-              with that letter.
-
-       '      (Single quote.)  Followed by any lowercase  letter,  returns  to
-              the position which was previously marked with that letter.  Fol-
-              lowed by another single quote, returns to the position at  which
-              the last "large" movement command was executed.  Followed by a ^
-              or $, jumps to the beginning or end of  the  file  respectively.
-              Marks  are  preserved when a new file is examined, so the ' com-
-              mand can be used to switch between input files.
-
-       ^X^X   Same as single quote.
-
-       /pattern
-              Search forward in the file for the N-th line containing the pat-
-              tern.  N defaults to 1.  The pattern is a regular expression, as
-              recognized by the regular expression library  supplied  by  your
-              system.   The search starts at the first line displayed (but see
-              the -a and -j options, which change this).
-
-              Certain characters are special if entered at  the  beginning  of
-              the  pattern;  they modify the type of search rather than become
-              part of the pattern:
-
-              ^N or !
-                     Search for lines which do NOT match the pattern.
-
-              ^E or *
-                     Search multiple files.  That is, if  the  search  reaches
-                     the  END of the current file without finding a match, the
-                     search continues in the next file  in  the  command  line
-                     list.
-
-              ^F or @
-                     Begin  the  search at the first line of the FIRST file in
-                     the command line list, regardless of  what  is  currently
-                     displayed  on  the screen or the settings of the -a or -j
-                     options.
-
-              ^K     Highlight any text which matches the pattern on the  cur-
-                     rent screen, but don't move to the first match (KEEP cur-
-                     rent position).
-
-              ^R     Don't interpret regular expression  metacharacters;  that
-                     is, do a simple textual comparison.
-
-       ?pattern
-              Search  backward  in  the  file for the N-th line containing the
-              pattern.  The search starts at the line immediately  before  the
-              top line displayed.
-
-              Certain characters are special as in the / command:
-
-              ^N or !
-                     Search for lines which do NOT match the pattern.
-
-              ^E or *
-                     Search  multiple  files.   That is, if the search reaches
-                     the beginning of  the  current  file  without  finding  a
-                     match,  the  search continues in the previous file in the
-                     command line list.
-
-              ^F or @
-                     Begin the search at the last line of the last file in the
-                     command  line  list, regardless of what is currently dis-
-                     played on the screen or the settings  of  the  -a  or  -j
-                     options.
-
-              ^K     As in forward searches.
-
-              ^R     As in forward searches.
-
-       ESC-/pattern
-              Same as "/*".
-
-       ESC-?pattern
-              Same as "?*".
-
-       n      Repeat  previous  search, for N-th line containing the last pat-
-              tern.  If the previous search was modified by ^N, the search  is
-              made  for the N-th line NOT containing the pattern.  If the pre-
-              vious search was modified by ^E, the  search  continues  in  the
-              next  (or  previous)  file if not satisfied in the current file.
-              If the previous search was modified by ^R, the  search  is  done
-              without  using  regular  expressions.  There is no effect if the
-              previous search was modified by ^F or ^K.
-
-       N      Repeat previous search, but in the reverse direction.
-
-       ESC-n  Repeat previous  search,  but  crossing  file  boundaries.   The
-              effect is as if the previous search were modified by *.
-
-       ESC-N  Repeat  previous search, but in the reverse direction and cross-
-              ing file boundaries.
-
-       ESC-u  Undo search highlighting.   Turn  off  highlighting  of  strings
-              matching the current search pattern.  If highlighting is already
-              off because of a previous ESC-u command, turn highlighting  back
-              on.   Any  search  command  will also turn highlighting back on.
-              (Highlighting can also be disabled by toggling the -G option; in
-              that case search commands do not turn highlighting back on.)
-
-       &pattern
-              Display  only  lines which match the pattern; lines which do not
-              match the pattern are not displayed.  If pattern  is  empty  (if
-              you  type  &  immediately  followed  by ENTER), any filtering is
-              turned off, and all lines are displayed.  While filtering is  in
-              effect,  an  ampersand  is  displayed  at  the  beginning of the
-              prompt, as a reminder that some lines in the file may be hidden.
-
-              Certain characters are special as in the / command:
-
-              ^N or !
-                     Display only lines which do NOT match the pattern.
-
-              ^R     Don't interpret regular expression  metacharacters;  that
-                     is, do a simple textual comparison.
-
-       :e [filename]
-              Examine  a  new file.  If the filename is missing, the "current"
-              file (see the :n and :p commands below) from the list  of  files
-              in  the  command line is re-examined.  A percent sign (%) in the
-              filename is replaced by the name of the current file.   A  pound
-              sign  (#)  is  replaced  by  the name of the previously examined
-              file.   However,  two  consecutive  percent  signs  are   simply
-              replaced with a single percent sign.  This allows you to enter a
-              filename that contains a percent sign in the  name.   Similarly,
-              two  consecutive  pound  signs  are replaced with a single pound
-              sign.  The filename is inserted into the command  line  list  of
-              files  so  that it can be seen by subsequent :n and :p commands.
-              If the filename consists of several files, they are all inserted
-              into  the  list  of files and the first one is examined.  If the
-              filename contains one or more spaces, the entire filename should
-              be enclosed in double quotes (also see the -" option).
-
-       ^X^V or E
-              Same  as :e.  Warning: some systems use ^V as a special literal-
-              ization character.  On such systems, you may not be able to  use
-              ^V.
-
-       :n     Examine  the next file (from the list of files given in the com-
-              mand line).  If a number N is specified, the N-th next  file  is
-              examined.
-
-       :p     Examine the previous file in the command line list.  If a number
-              N is specified, the N-th previous file is examined.
-
-       :x     Examine the first file in the command line list.  If a number  N
-              is specified, the N-th file in the list is examined.
-
-       :d     Remove the current file from the list of files.
-
-       t      Go  to the next tag, if there were more than one matches for the
-              current tag.  See the -t option for more details about tags.
-
-       T      Go to the previous tag, if there were more than one matches  for
-              the current tag.
-
-       = or ^G or :f
-              Prints  some  information about the file being viewed, including
-              its name and the line number and byte offset of the bottom  line
-              being  displayed.  If possible, it also prints the length of the
-              file, the number of lines in the file and  the  percent  of  the
-              file above the last displayed line.
-
-       -      Followed  by one of the command line option letters (see OPTIONS
-              below), this will change the setting of that option and print  a
-              message  describing  the  new  setting.   If a ^P (CONTROL-P) is
-              entered immediately after the dash, the setting of the option is
-              changed  but  no message is printed.  If the option letter has a
-              numeric value (such as -b or -h), or a string value (such as  -P
-              or  -t), a new value may be entered after the option letter.  If
-              no new value is entered, a message describing the  current  set-
-              ting is printed and nothing is changed.
-
-       --     Like  the  -  command, but takes a long option name (see OPTIONS
-              below) rather than a single option letter.  You must press ENTER
-              or  RETURN after typing the option name.  A ^P immediately after
-              the second dash suppresses printing of a message describing  the
-              new setting, as in the - command.
-
-       -+     Followed  by  one  of  the command line option letters this will
-              reset the option to its default  setting  and  print  a  message
-              describing  the  new  setting.  (The "-+X" command does the same
-              thing as "-+X" on the command line.)  This  does  not  work  for
-              string-valued options.
-
-       --+    Like  the -+ command, but takes a long option name rather than a
-              single option letter.
-
-       -!     Followed by one of the command line option  letters,  this  will
-              reset  the  option  to the "opposite" of its default setting and
-              print a message describing the new setting.  This does not  work
-              for numeric or string-valued options.
-
-       --!    Like  the -! command, but takes a long option name rather than a
-              single option letter.
-
-       _      (Underscore.)  Followed by one of the command line  option  let-
-              ters,  this  will print a message describing the current setting
-              of that option.  The setting of the option is not changed.
-
-       __     (Double underscore.)  Like the _ (underscore) command, but takes
-              a long option name rather than a single option letter.  You must
-              press ENTER or RETURN after typing the option name.
-
-       +cmd   Causes the specified cmd to be executed each time a new file  is
-              examined.  For example, +G causes less to initially display each
-              file starting at the end rather than the beginning.
-
-       V      Prints the version number of less being run.
-
-       q or Q or :q or :Q or ZZ
-              Exits less.
-
-       The following four commands may or may not be valid, depending on  your
-       particular installation.
-
-       v      Invokes  an  editor  to edit the current file being viewed.  The
-              editor is taken from the environment variable VISUAL if defined,
-              or  EDITOR if VISUAL is not defined, or defaults to "vi" if nei-
-              ther VISUAL nor EDITOR is defined.  See also the  discussion  of
-              LESSEDIT under the section on PROMPTS below.
-
-       ! shell-command
-              Invokes  a shell to run the shell-command given.  A percent sign
-              (%) in the command is replaced by the name of the current  file.
-              A pound sign (#) is replaced by the name of the previously exam-
-              ined file.  "!!" repeats the last shell command.   "!"  with  no
-              shell  command  simply  invokes  a  shell.  On Unix systems, the
-              shell is taken from the environment variable SHELL, or  defaults
-              to  "sh".   On  MS-DOS and OS/2 systems, the shell is the normal
-              command processor.
-
-       | <m> shell-command
-              <m> represents any mark letter.  Pipes a section  of  the  input
-              file  to the given shell command.  The section of the file to be
-              piped is between the first line on the current  screen  and  the
-              position  marked by the letter.  <m> may also be ^ or $ to indi-
-              cate beginning or end of file respectively.  If <m> is . or new-
-              line, the current screen is piped.
-
-       s filename
-              Save  the  input  to  a file.  This only works if the input is a
-              pipe, not an ordinary file.
-
-OPTIONS
-       Command line options are described below.  Most options may be  changed
-       while less is running, via the "-" command.
-
-       Most  options  may be given in one of two forms: either a dash followed
-       by a single letter, or two dashes followed by a long  option  name.   A
-       long  option  name  may  be  abbreviated as long as the abbreviation is
-       unambiguous.  For example, --quit-at-eof may be abbreviated --quit, but
-       not --qui, since both --quit-at-eof and --quiet begin with --qui.  Some
-       long option names are in uppercase, such as --QUIT-AT-EOF, as  distinct
-       from  --quit-at-eof.  Such option names need only have their first let-
-       ter capitalized; the remainder of the name may be in either case.   For
-       example, --Quit-at-eof is equivalent to --QUIT-AT-EOF.
-
-       Options are also taken from the environment variable "LESS".  For exam-
-       ple, to avoid typing "less -options ..." each time less is invoked, you
-       might tell csh:
-
-       setenv LESS "-options"
-
-       or if you use sh:
-
-       LESS="-options"; export LESS
-
-       On  MS-DOS,  you don't need the quotes, but you should replace any per-
-       cent signs in the options string by double percent signs.
-
-       The environment variable is parsed before the command line, so  command
-       line  options  override  the  LESS  environment variable.  If an option
-       appears in the LESS variable, it can be reset to its default  value  on
-       the command line by beginning the command line option with "-+".
-
-       Some  options  like -k or -D require a string to follow the option let-
-       ter.  The string for that option is considered to  end  when  a  dollar
-       sign  ($)  is found.  For example, you can set two -D options on MS-DOS
-       like this:
-
-       LESS="Dn9.1$Ds4.1"
-
-       If the --use-backslash option appears earlier in the  options,  then  a
-       dollar  sign or backslash may be included literally in an option string
-       by preceding it with a backslash.  If the --use-backslash option is not
-       in  effect, then backslashes are not treated specially, and there is no
-       way to include a dollar sign in the option string.
-
-       -? or --help
-              This option displays a summary of the commands accepted by  less
-              (the  same  as  the  h  command).   (Depending on how your shell
-              interprets the question mark, it may be necessary to  quote  the
-              question mark, thus: "-\?".)
-
-       -a or --search-skip-screen
-              By  default,  forward searches start at the top of the displayed
-              screen and backwards searches start at the bottom  of  the  dis-
-              played  screen (except for repeated searches invoked by the n or
-              N commands, which  start  after  or  before  the  "target"  line
-              respectively; see the -j option for more about the target line).
-              The -a option causes forward searches to instead  start  at  the
-              bottom  of  the screen and backward searches to start at the top
-              of the screen, thus skipping all lines displayed on the screen.
-
-       -A or --SEARCH-SKIP-SCREEN
-              Causes all forward searches (not just non-repeated searches)  to
-              start  just  after the target line, and all backward searches to
-              start just before the target line.  Thus, forward searches  will
-              skip part of the displayed screen (from the first line up to and
-              including the target line).  Similarly backwards  searches  will
-              skip the displayed screen from the last line up to and including
-              the target line.  This was the default behavior in less versions
-              prior to 441.
-
-       -bn or --buffers=n
-              Specifies  the  amount  of  buffer  space less will use for each
-              file, in units of kilobytes (1024 bytes).   By  default  64K  of
-              buffer  space  is used for each file (unless the file is a pipe;
-              see the -B option).  The -b  option  specifies  instead  that  n
-              kilobytes of buffer space should be used for each file.  If n is
-              -1, buffer space is unlimited; that is, the entire file  can  be
-              read into memory.
-
-       -B or --auto-buffers
-              By default, when data is read from a pipe, buffers are allocated
-              automatically as needed.  If a large amount of data is read from
-              the  pipe,  this  can cause a large amount of memory to be allo-
-              cated.  The -B option disables this automatic allocation of buf-
-              fers  for pipes, so that only 64K (or the amount of space speci-
-              fied by the -b option) is used for the pipe.  Warning: use of -B
-              can  result  in  erroneous display, since only the most recently
-              viewed part of the piped data is kept  in  memory;  any  earlier
-              data is lost.
-
-       -c or --clear-screen
-              Causes  full  screen  repaints  to  be painted from the top line
-              down.  By default, full screen repaints are  done  by  scrolling
-              from the bottom of the screen.
-
-       -C or --CLEAR-SCREEN
-              Same as -c, for compatibility with older versions of less.
-
-       -d or --dumb
-              The -d option suppresses the error message normally displayed if
-              the terminal is dumb; that is, lacks some important  capability,
-              such as the ability to clear the screen or scroll backward.  The
-              -d option does not otherwise change the behavior of  less  on  a
-              dumb terminal.
-
-       -Dxcolor or --color=xcolor
-              [MS-DOS only] Sets the color of the text displayed.  x is a sin-
-              gle character which selects the type  of  text  whose  color  is
-              being  set: n=normal, s=standout, d=bold, u=underlined, k=blink.
-              color is a pair of numbers separated by  a  period.   The  first
-              number  selects  the foreground color and the second selects the
-              background color of the text.  A single number N is the same  as
-              N.M, where M is the normal background color.
-
-
-       -e or --quit-at-eof
-              Causes  less  to  automatically  exit the second time it reaches
-              end-of-file.  By default, the only way to exit less is  via  the
-              "q" command.
-
-       -E or --QUIT-AT-EOF
-              Causes less to automatically exit the first time it reaches end-
-              of-file.
-
-       -f or --force
-              Forces non-regular files to be opened.  (A non-regular file is a
-              directory  or a device special file.)  Also suppresses the warn-
-              ing message when a binary file is opened.  By default, less will
-              refuse to open non-regular files.  Note that some operating sys-
-              tems will not allow directories to be read, even if -f is set.
-
-       -F or --quit-if-one-screen
-              Causes less to automatically exit if the entire file can be dis-
-              played on the first screen.
-
-       -g or --hilite-search
-              Normally,  less  will highlight ALL strings which match the last
-              search command.  The -g option changes this  behavior  to  high-
-              light  only  the  particular  string which was found by the last
-              search command.  This can cause less to run somewhat faster than
-              the default.
-
-       -G or --HILITE-SEARCH
-              The  -G  option  suppresses all highlighting of strings found by
-              search commands.
-
-       -hn or --max-back-scroll=n
-              Specifies a maximum number of lines to scroll backward.   If  it
-              is necessary to scroll backward more than n lines, the screen is
-              repainted in a forward direction instead.  (If the terminal does
-              not have the ability to scroll backward, -h0 is implied.)
-
-       -i or --ignore-case
-              Causes searches to ignore case; that is, uppercase and lowercase
-              are considered identical.  This option is ignored if any  upper-
-              case  letters appear in the search pattern; in other words, if a
-              pattern contains uppercase letters, then that  search  does  not
-              ignore case.
-
-       -I or --IGNORE-CASE
-              Like  -i,  but searches ignore case even if the pattern contains
-              uppercase letters.
-
-       -jn or --jump-target=n
-              Specifies a line on the screen where the "target" line is to  be
-              positioned.   The  target line is the line specified by any com-
-              mand to search for a pattern, jump to a line number, jump  to  a
-              file percentage or jump to a tag.  The screen line may be speci-
-              fied by a number: the top line on the screen is 1, the  next  is
-              2, and so on.  The number may be negative to specify a line rel-
-              ative to the bottom of the screen: the bottom line on the screen
-              is  -1, the second to the bottom is -2, and so on.  Alternately,
-              the screen line may be specified as a fraction of the height  of
-              the  screen,  starting with a decimal point: .5 is in the middle
-              of the screen, .3 is three tenths down from the first line,  and
-              so  on.  If the line is specified as a fraction, the actual line
-              number is recalculated if the terminal  window  is  resized,  so
-              that  the  target  line remains at the specified fraction of the
-              screen height.  If any form of the -j option  is  used,  forward
-              searches  begin  at  the line immediately after the target line,
-              and backward searches begin at the target line,  unless  changed
-              by  -a or -A.  For example, if "-j4" is used, the target line is
-              the fourth line on the screen, so forward searches begin at  the
-              fifth line on the screen.
-
-       -J or --status-column
-              Displays  a  status  column at the left edge of the screen.  The
-              status column shows the lines that matched the  current  search.
-              The  status  column  is  also  used if the -w or -W option is in
-              effect.
-
-       -kfilename or --lesskey-file=filename
-              Causes less to open and interpret the named file  as  a  lesskey
-              (1) file.  Multiple -k options may be specified.  If the LESSKEY
-              or LESSKEY_SYSTEM environment variable is set, or if  a  lesskey
-              file is found in a standard place (see KEY BINDINGS), it is also
-              used as a lesskey file.
-
-       -K or --quit-on-intr
-              Causes less to exit immediately (with status 2) when  an  inter-
-              rupt  character  (usually  ^C) is typed.  Normally, an interrupt
-              character causes less to stop whatever it is doing and return to
-              its  command  prompt.   Note  that  use  of this option makes it
-              impossible to return to the command prompt from the "F" command.
-
-       -L or --no-lessopen
-              Ignore the LESSOPEN environment variable  (see  the  INPUT  PRE-
-              PROCESSOR  section  below).   This option can be set from within
-              less, but it will apply only to files opened  subsequently,  not
-              to the file which is currently open.
-
-       -m or --long-prompt
-              Causes  less  to  prompt verbosely (like more), with the percent
-              into the file.  By default, less prompts with a colon.
-
-       -M or --LONG-PROMPT
-              Causes less to prompt even more verbosely than more.
-
-       -n or --line-numbers
-              Suppresses line numbers.  The default (to use line numbers)  may
-              cause  less  to run more slowly in some cases, especially with a
-              very large input file.  Suppressing line  numbers  with  the  -n
-              option  will  avoid this problem.  Using line numbers means: the
-              line number will be displayed in the verbose prompt and in the =
-              command,  and the v command will pass the current line number to
-              the editor (see also  the  discussion  of  LESSEDIT  in  PROMPTS
-              below).
-
-       -N or --LINE-NUMBERS
-              Causes  a  line  number to be displayed at the beginning of each
-              line in the display.
-
-       -ofilename or --log-file=filename
-              Causes less to copy its input to the named file as it  is  being
-              viewed.  This applies only when the input file is a pipe, not an
-              ordinary file.  If the file already exists, less  will  ask  for
-              confirmation before overwriting it.
-
-       -Ofilename or --LOG-FILE=filename
-              The -O option is like -o, but it will overwrite an existing file
-              without asking for confirmation.
-
-              If no log file has been specified, the -o and -O options can  be
-              used  from  within  less  to specify a log file.  Without a file
-              name, they will simply report the name of the log file.  The "s"
-              command is equivalent to specifying -o from within less.
-
-       -ppattern or --pattern=pattern
-              The  -p  option  on the command line is equivalent to specifying
-              +/pattern; that is, it tells less to start at the  first  occur-
-              rence of pattern in the file.
-
-       -Pprompt or --prompt=prompt
-              Provides  a  way  to  tailor the three prompt styles to your own
-              preference.  This option would normally be put in the LESS envi-
-              ronment variable, rather than being typed in with each less com-
-              mand.  Such an option must either be the last option in the LESS
-              variable,  or be terminated by a dollar sign.  -Ps followed by a
-              string changes the default (short) prompt to that  string.   -Pm
-              changes  the  medium  (-m)  prompt.   -PM  changes the long (-M)
-              prompt.  -Ph changes  the  prompt  for  the  help  screen.   -P=
-              changes  the  message printed by the = command.  -Pw changes the
-              message printed while waiting for data (in the F command).   All
-              prompt  strings  consist  of  a  sequence of letters and special
-              escape sequences.  See the section on PROMPTS for more details.
-
-       -q or --quiet or --silent
-              Causes moderately "quiet" operation: the terminal  bell  is  not
-              rung if an attempt is made to scroll past the end of the file or
-              before the beginning of the file.  If the terminal has a "visual
-              bell",  it  is  used  instead.  The bell will be rung on certain
-              other errors, such as typing an invalid character.  The  default
-              is to ring the terminal bell in all such cases.
-
-       -Q or --QUIET or --SILENT
-              Causes  totally  "quiet"  operation:  the terminal bell is never
-              rung.
-
-       -r or --raw-control-chars
-              Causes "raw" control characters to be displayed.  The default is
-              to  display  control  characters  using  the caret notation; for
-              example, a control-A (octal 001) is displayed as "^A".  Warning:
-              when the -r option is used, less cannot keep track of the actual
-              appearance of the screen (since this depends on how  the  screen
-              responds to each type of control character).  Thus, various dis-
-              play problems may result, such as long lines being split in  the
-              wrong place.
-
-       -R or --RAW-CONTROL-CHARS
-              Like  -r,  but  only ANSI "color" escape sequences are output in
-              "raw" form.  Unlike -r, the screen appearance is maintained cor-
-              rectly  in  most  cases.   ANSI  "color"  escape  sequences  are
-              sequences of the form:
-
-                   ESC [ ... m
-
-              where the "..." is zero or more color  specification  characters
-              For  the  purpose  of  keeping  track of screen appearance, ANSI
-              color escape sequences are assumed to not move the cursor.   You
-              can  make less think that characters other than "m" can end ANSI
-              color escape  sequences  by  setting  the  environment  variable
-              LESSANSIENDCHARS to the list of characters which can end a color
-              escape sequence.  And you can make less  think  that  characters
-              other  than the standard ones may appear between the ESC and the
-              m by setting the environment variable  LESSANSIMIDCHARS  to  the
-              list of characters which can appear.
-
-       -s or --squeeze-blank-lines
-              Causes  consecutive  blank  lines  to  be squeezed into a single
-              blank line.  This is useful when viewing nroff output.
-
-       -S or --chop-long-lines
-              Causes lines longer than the screen width to be  chopped  (trun-
-              cated) rather than wrapped.  That is, the portion of a long line
-              that does not fit in the screen width is not shown.  The default
-              is  to  wrap  long  lines; that is, display the remainder on the
-              next line.
-
-       -ttag or --tag=tag
-              The -t option, followed immediately by a TAG, will edit the file
-              containing  that tag.  For this to work, tag information must be
-              available; for example, there may  be  a  file  in  the  current
-              directory called "tags", which was previously built by ctags (1)
-              or an equivalent command.  If the environment variable LESSGLOB-
-              ALTAGS  is set, it is taken to be the name of a command compati-
-              ble with global (1), and that command is executed  to  find  the
-              tag.  (See http://www.gnu.org/software/global/global.html).  The
-              -t option may also be specified from within less  (using  the  -
-              command)  as a way of examining a new file.  The command ":t" is
-              equivalent to specifying -t from within less.
-
-       -Ttagsfile or --tag-file=tagsfile
-              Specifies a tags file to be used instead of "tags".
-
-       -u or --underline-special
-              Causes backspaces and carriage returns to be treated  as  print-
-              able  characters;  that  is,  they are sent to the terminal when
-              they appear in the input.
-
-       -U or --UNDERLINE-SPECIAL
-              Causes backspaces, tabs and carriage returns to  be  treated  as
-              control  characters;  that  is, they are handled as specified by
-              the -r option.
-
-              By default, if neither -u nor  -U  is  given,  backspaces  which
-              appear  adjacent  to  an  underscore  character are treated spe-
-              cially: the underlined text is displayed  using  the  terminal's
-              hardware  underlining capability.  Also, backspaces which appear
-              between two identical  characters  are  treated  specially:  the
-              overstruck  text  is printed using the terminal's hardware bold-
-              face capability.  Other backspaces are deleted, along  with  the
-              preceding character.  Carriage returns immediately followed by a
-              newline are deleted.  Other  carriage  returns  are  handled  as
-              specified  by the -r option.  Text which is overstruck or under-
-              lined can be searched for if neither -u nor -U is in effect.
-
-       -V or --version
-              Displays the version number of less.
-
-       -w or --hilite-unread
-              Temporarily highlights the first  "new"  line  after  a  forward
-              movement of a full page.  The first "new" line is the line imme-
-              diately following the line  previously  at  the  bottom  of  the
-              screen.  Also highlights the target line after a g or p command.
-              The highlight is removed at the next command which causes  move-
-              ment.   The  entire line is highlighted, unless the -J option is
-              in effect, in which case only the status column is highlighted.
-
-       -W or --HILITE-UNREAD
-              Like -w, but temporarily highlights the first new line after any
-              forward movement command larger than one line.
-
-       -xn,... or --tabs=n,...
-              Sets  tab  stops.  If only one n is specified, tab stops are set
-              at multiples of n.  If multiple values separated by  commas  are
-              specified,  tab  stops are set at those positions, and then con-
-              tinue with the same spacing  as  the  last  two.   For  example,
-              -x9,17  will  set  tabs  at  positions  9, 17, 25, 33, etc.  The
-              default for n is 8.
-
-       -X or --no-init
-              Disables sending the termcap initialization and deinitialization
-              strings  to  the  terminal.   This is sometimes desirable if the
-              deinitialization string does something unnecessary, like  clear-
-              ing the screen.
-
-       -yn or --max-forw-scroll=n
-              Specifies a maximum number of lines to scroll forward.  If it is
-              necessary to scroll forward more than n  lines,  the  screen  is
-              repainted  instead.   The -c or -C option may be used to repaint
-              from the top of the screen if desired.  By default, any  forward
-              movement causes scrolling.
-
-       -[z]n or --window=n
-              Changes  the  default  scrolling  window  size  to n lines.  The
-              default is one screenful.  The z and w commands can also be used
-              to  change the window size.  The "z" may be omitted for compati-
-              bility with some versions of more.  If the number n is negative,
-              it  indicates  n  lines  less than the current screen size.  For
-              example, if the screen is 24 lines, -z-4 sets the scrolling win-
-              dow  to  20  lines.   If  the screen is resized to 40 lines, the
-              scrolling window automatically changes to 36 lines.
-
-       -"cc or --quotes=cc
-              Changes the filename quoting character.  This may  be  necessary
-              if  you are trying to name a file which contains both spaces and
-              quote characters.  Followed by a single character, this  changes
-              the  quote  character to that character.  Filenames containing a
-              space should then be surrounded by that character rather than by
-              double  quotes.   Followed  by  two characters, changes the open
-              quote to the first character, and the close quote to the  second
-              character.  Filenames containing a space should then be preceded
-              by the open quote character and  followed  by  the  close  quote
-              character.   Note  that  even  after  the  quote  characters are
-              changed, this option remains -" (a dash  followed  by  a  double
-              quote).
-
-       -~ or --tilde
-              Normally lines after end of file are displayed as a single tilde
-              (~).  This option causes lines after end of file to be displayed
-              as blank lines.
-
-       -# or --shift
-              Specifies the default number of positions to scroll horizontally
-              in the RIGHTARROW and LEFTARROW commands.  If the number  speci-
-              fied  is  zero,  it  sets the default number of positions to one
-              half of the screen width.  Alternately, the number may be speci-
-              fied  as  a fraction of the width of the screen, starting with a
-              decimal point: .5 is half of  the  screen  width,  .3  is  three
-              tenths  of the screen width, and so on.  If the number is speci-
-              fied as a fraction, the actual number  of  scroll  positions  is
-              recalculated  if  the  terminal  window  is resized, so that the
-              actual scroll remains at the specified fraction  of  the  screen
-              width.
-
-       --follow-name
-              Normally,  if  the  input  file is renamed while an F command is
-              executing, less will continue to display  the  contents  of  the
-              original  file  despite  its  name  change.  If --follow-name is
-              specified, during an F command less will periodically attempt to
-              reopen the file by name.  If the reopen succeeds and the file is
-              a different file from the original (which means that a new  file
-              has  been  created  with  the  same  name  as  the original (now
-              renamed) file), less will display the contents of that new file.
-
-       --no-keypad
-              Disables sending the keypad initialization and  deinitialization
-              strings to the terminal.  This is sometimes useful if the keypad
-              strings make the numeric keypad behave in an undesirable manner.
-
-       --use-backslash
-              This option changes the interpretations of options which  follow
-              this one.  After the --use-backslash option, any backslash in an
-              option string is removed and the following  character  is  taken
-              literally.   This  allows a dollar sign to be included in option
-              strings.
-
-       --     A command line argument of "--" marks the end  of  option  argu-
-              ments.   Any  arguments  following this are interpreted as file-
-              names.  This can be useful when viewing a file whose name begins
-              with a "-" or "+".
-
-       +      If  a  command  line option begins with +, the remainder of that
-              option is taken to be an initial command to less.  For  example,
-              +G  tells  less  to start at the end of the file rather than the
-              beginning, and +/xyz tells it to start at the  first  occurrence
-              of  "xyz"  in  the file.  As a special case, +<number> acts like
-              +<number>g; that is, it starts the display at the specified line
-              number  (however,  see  the caveat under the "g" command above).
-              If the option starts with ++, the  initial  command  applies  to
-              every  file being viewed, not just the first one.  The + command
-              described previously may also be used to set (or change) an ini-
-              tial command for every file.
-
-
-LINE EDITING
-       When  entering command line at the bottom of the screen (for example, a
-       filename for the :e command, or the pattern for a search command), cer-
-       tain  keys  can  be used to manipulate the command line.  Most commands
-       have an alternate form in [ brackets ] which can be used if a key  does
-       not  exist  on  a  particular keyboard.  (Note that the forms beginning
-       with ESC do not work in some MS-DOS and Windows systems because ESC  is
-       the  line  erase  character.)  Any of these special keys may be entered
-       literally by preceding it with the "literal" character,  either  ^V  or
-       ^A.   A  backslash itself may also be entered literally by entering two
-       backslashes.
-
-       LEFTARROW [ ESC-h ]
-              Move the cursor one space to the left.
-
-       RIGHTARROW [ ESC-l ]
-              Move the cursor one space to the right.
-
-       ^LEFTARROW [ ESC-b or ESC-LEFTARROW ]
-              (That is, CONTROL and LEFTARROW simultaneously.)  Move the  cur-
-              sor one word to the left.
-
-       ^RIGHTARROW [ ESC-w or ESC-RIGHTARROW ]
-              (That is, CONTROL and RIGHTARROW simultaneously.)  Move the cur-
-              sor one word to the right.
-
-       HOME [ ESC-0 ]
-              Move the cursor to the beginning of the line.
-
-       END [ ESC-$ ]
-              Move the cursor to the end of the line.
-
-       BACKSPACE
-              Delete the character to the left of the cursor,  or  cancel  the
-              command if the command line is empty.
-
-       DELETE or [ ESC-x ]
-              Delete the character under the cursor.
-
-       ^BACKSPACE [ ESC-BACKSPACE ]
-              (That  is,  CONTROL  and  BACKSPACE simultaneously.)  Delete the
-              word to the left of the cursor.
-
-       ^DELETE [ ESC-X or ESC-DELETE ]
-              (That is, CONTROL and DELETE simultaneously.)  Delete  the  word
-              under the cursor.
-
-       UPARROW [ ESC-k ]
-              Retrieve  the  previous  command  line.  If you first enter some
-              text and then press UPARROW, it will retrieve the previous  com-
-              mand which begins with that text.
-
-       DOWNARROW [ ESC-j ]
-              Retrieve  the  next  command line.  If you first enter some text
-              and then press DOWNARROW, it  will  retrieve  the  next  command
-              which begins with that text.
-
-       TAB    Complete  the partial filename to the left of the cursor.  If it
-              matches more than one filename, the first match is entered  into
-              the  command  line.   Repeated  TABs  will  cycle thru the other
-              matching filenames.  If the completed filename is a directory, a
-              "/"  is  appended to the filename.  (On MS-DOS systems, a "\" is
-              appended.)  The environment variable LESSSEPARATOR can  be  used
-              to specify a different character to append to a directory name.
-
-       BACKTAB [ ESC-TAB ]
-              Like, TAB, but cycles in the reverse direction thru the matching
-              filenames.
-
-       ^L     Complete the partial filename to the left of the cursor.  If  it
-              matches more than one filename, all matches are entered into the
-              command line (if they fit).
-
-       ^U (Unix and OS/2) or ESC (MS-DOS)
-              Delete the entire command line, or cancel  the  command  if  the
-              command line is empty.  If you have changed your line-kill char-
-              acter in Unix to something other than ^U, that character is used
-              instead of ^U.
-
-       ^G     Delete the entire command line and return to the main prompt.
-
-
-KEY BINDINGS
-       You  may define your own less commands by using the program lesskey (1)
-       to create a lesskey file.  This file specifies a set  of  command  keys
-       and  an  action  associated with each key.  You may also use lesskey to
-       change the line-editing keys (see LINE EDITING), and to set environment
-       variables.   If the environment variable LESSKEY is set, less uses that
-       as the name of the lesskey file.  Otherwise, less looks in  a  standard
-       place  for  the lesskey file: On Unix systems, less looks for a lesskey
-       file called "$HOME/.less".  On MS-DOS and Windows systems,  less  looks
-       for  a lesskey file called "$HOME/_less", and if it is not found there,
-       then looks for a lesskey file called "_less" in any directory specified
-       in  the  PATH  environment variable.  On OS/2 systems, less looks for a
-       lesskey file called "$HOME/less.ini", and if  it  is  not  found,  then
-       looks  for  a lesskey file called "less.ini" in any directory specified
-       in the INIT environment variable, and if it not found there, then looks
-       for  a lesskey file called "less.ini" in any directory specified in the
-       PATH environment variable.   See  the  lesskey  manual  page  for  more
-       details.
-
-       A  system-wide lesskey file may also be set up to provide key bindings.
-       If a key is defined in both a local lesskey file and in the system-wide
-       file,  key bindings in the local file take precedence over those in the
-       system-wide file.  If the environment variable LESSKEY_SYSTEM  is  set,
-       less uses that as the name of the system-wide lesskey file.  Otherwise,
-       less looks in a standard place for the  system-wide  lesskey  file:  On
-       Unix  systems,  the system-wide lesskey file is /usr/local/etc/sysless.
-       (However, if less was built with a  different  sysconf  directory  than
-       /usr/local/etc, that directory is where the sysless file is found.)  On
-       MS-DOS and Windows systems, the system-wide lesskey  file  is  c:\_sys-
-       less.  On OS/2 systems, the system-wide lesskey file is c:\sysless.ini.
-
-
-INPUT PREPROCESSOR
-       You  may  define an "input preprocessor" for less.  Before less opens a
-       file, it first gives your input preprocessor a chance to modify the way
-       the  contents of the file are displayed.  An input preprocessor is sim-
-       ply an executable program (or shell script), which writes the  contents
-       of the file to a different file, called the replacement file.  The con-
-       tents of the replacement file are then displayed in place of  the  con-
-       tents  of the original file.  However, it will appear to the user as if
-       the original file is opened; that is, less will  display  the  original
-       filename as the name of the current file.
-
-       An  input preprocessor receives one command line argument, the original
-       filename, as entered by the user.  It  should  create  the  replacement
-       file,  and when finished, print the name of the replacement file to its
-       standard output.  If the input preprocessor does not output a  replace-
-       ment  filename, less uses the original file, as normal.  The input pre-
-       processor is not called when viewing standard  input.   To  set  up  an
-       input  preprocessor, set the LESSOPEN environment variable to a command
-       line which will invoke your  input  preprocessor.   This  command  line
-       should  include  one  occurrence  of  the  string  "%s",  which will be
-       replaced by  the  filename  when  the  input  preprocessor  command  is
-       invoked.
-
-       When less closes a file opened in such a way, it will call another pro-
-       gram, called the input postprocessor, which  may  perform  any  desired
-       clean-up  action  (such  as  deleting  the  replacement file created by
-       LESSOPEN).  This program receives two command line arguments, the orig-
-       inal  filename  as entered by the user, and the name of the replacement
-       file.  To set up an input postprocessor, set the LESSCLOSE  environment
-       variable  to a command line which will invoke your input postprocessor.
-       It may include two  occurrences  of  the  string  "%s";  the  first  is
-       replaced  with  the  original  name of the file and the second with the
-       name of the replacement file, which was output by LESSOPEN.
-
-       For example, on many Unix systems, these two scripts will allow you  to
-       keep files in compressed format, but still let less view them directly:
-
-       lessopen.sh:
-            #! /bin/sh
-            case "$1" in
-            *.Z) uncompress -
-                 if [ -s /tmp/less.$$ ]; then
-                      echo /tmp/less.$$
-                 else
-                      rm -f /tmp/less.$$
-                 fi
-                 ;;
-            esac
-
-       lessclose.sh:
-            #! /bin/sh
-            rm $2
-
-       To  use these scripts, put them both where they can be executed and set
-       LESSOPEN="lessopen.sh %s",  and  LESSCLOSE="lessclose.sh %s %s".   More
-       complex  LESSOPEN  and LESSCLOSE scripts may be written to accept other
-       types of compressed files, and so on.
-
-       It is also possible to set up an input preprocessor to  pipe  the  file
-       data  directly to less, rather than putting the data into a replacement
-       file.  This avoids the need to decompress the entire file before start-
-       ing to view it.  An input preprocessor that works this way is called an
-       input pipe.  An input pipe, instead of writing the name of  a  replace-
-       ment  file  on  its  standard output, writes the entire contents of the
-       replacement file on its standard output.  If the input  pipe  does  not
-       write  any characters on its standard output, then there is no replace-
-       ment file and less uses the original file, as normal.  To use an  input
-       pipe,  make  the first character in the LESSOPEN environment variable a
-       vertical bar (|) to signify that the input  preprocessor  is  an  input
-       pipe.
-
-       For  example, on many Unix systems, this script will work like the pre-
-       vious example scripts:
-
-       lesspipe.sh:
-            #! /bin/sh
-            case "$1" in
-            *.Z) uncompress -c $1  2>/dev/null
-            *)   exit 1
-                 ;;
-            esac
-            exit $?
-
-       To  use  this  script,  put  it  where  it  can  be  executed  and  set
-       LESSOPEN="|lesspipe.sh %s".
-
-       Note  that  a  preprocessor  cannot output an empty file, since that is
-       interpreted as meaning there is no replacement, and the  original  file
-       is used.  To avoid this, if LESSOPEN starts with two vertical bars, the
-       exit status of the script becomes meaningful.  If the  exit  status  is
-       zero,  the  output  is  considered  to  be replacement text, even if it
-       empty.  If the exit status is nonzero, any output is  ignored  and  the
-       original  file  is  used.   For compatibility with previous versions of
-       less, if LESSOPEN starts with only one vertical bar, the exit status of
-       the preprocessor is ignored.
-
-       When  an input pipe is used, a LESSCLOSE postprocessor can be used, but
-       it is usually not necessary since there is no replacement file to clean
-       up.   In  this  case, the replacement file name passed to the LESSCLOSE
-       postprocessor is "-".
-
-       For compatibility with previous versions of less, the input  preproces-
-       sor or pipe is not used if less is viewing standard input.  However, if
-       the first character of LESSOPEN is a dash (-), the  input  preprocessor
-       is  used  on  standard input as well as other files.  In this case, the
-       dash is not considered to be part  of  the  preprocessor  command.   If
-       standard input is being viewed, the input preprocessor is passed a file
-       name consisting of a single dash.  Similarly, if the first two  charac-
-       ters  of  LESSOPEN  are vertical bar and dash (|-) or two vertical bars
-       and a dash (||-), the input pipe is used on standard input as  well  as
-       other files.  Again, in this case the dash is not considered to be part
-       of the input pipe command.
-
-
-NATIONAL CHARACTER SETS
-       There are three types of characters in the input file:
-
-       normal characters
-              can be displayed directly to the screen.
-
-       control characters
-              should not be displayed directly, but are expected to  be  found
-              in ordinary text files (such as backspace and tab).
-
-       binary characters
-              should  not  be  displayed  directly  and are not expected to be
-              found in text files.
-
-       A "character set" is simply a description of which characters are to be
-       considered  normal,  control,  and binary.  The LESSCHARSET environment
-       variable may be used to select a character set.   Possible  values  for
-       LESSCHARSET are:
-
-       ascii  BS,  TAB, NL, CR, and formfeed are control characters, all chars
-              with values between 32 and 126 are normal, and  all  others  are
-              binary.
-
-       iso8859
-              Selects  an  ISO 8859 character set.  This is the same as ASCII,
-              except characters between 160 and  255  are  treated  as  normal
-              characters.
-
-       latin1 Same as iso8859.
-
-       latin9 Same as iso8859.
-
-       dos    Selects a character set appropriate for MS-DOS.
-
-       ebcdic Selects an EBCDIC character set.
-
-       IBM-1047
-              Selects  an  EBCDIC  character set used by OS/390 Unix Services.
-              This is the EBCDIC analogue of latin1.  You get similar  results
-              by setting either LESSCHARSET=IBM-1047 or LC_CTYPE=en_US in your
-              environment.
-
-       koi8-r Selects a Russian character set.
-
-       next   Selects a character set appropriate for NeXT computers.
-
-       utf-8  Selects the UTF-8 encoding  of  the  ISO  10646  character  set.
-              UTF-8  is  special  in that it supports multi-byte characters in
-              the input file.  It is the  only  character  set  that  supports
-              multi-byte characters.
-
-       windows
-              Selects  a  character  set appropriate for Microsoft Windows (cp
-              1251).
-
-       In rare cases, it may be desired to tailor less to use a character  set
-       other  than the ones definable by LESSCHARSET.  In this case, the envi-
-       ronment variable LESSCHARDEF can be used to define a character set.  It
-       should be set to a string where each character in the string represents
-       one character in the character set.  The character "." is  used  for  a
-       normal  character, "c" for control, and "b" for binary.  A decimal num-
-       ber may be used for repetition.   For  example,  "bccc4b."  would  mean
-       character  0  is  binary,  1,  2  and  3 are control, 4, 5, 6 and 7 are
-       binary, and 8 is normal.  All characters after the last are taken to be
-       the  same  as  the  last,  so characters 9 through 255 would be normal.
-       (This is an example, and does not necessarily represent any real  char-
-       acter set.)
-
-       This  table  shows the value of LESSCHARDEF which is equivalent to each
-       of the possible values for LESSCHARSET:
-
-            ascii     8bcccbcc18b95.b
-            dos       8bcccbcc12bc5b95.b.
-            ebcdic    5bc6bcc7bcc41b.9b7.9b5.b..8b6.10b6.b9.7b
-                      9.8b8.17b3.3b9.7b9.8b8.6b10.b.b.b.
-            IBM-1047  4cbcbc3b9cbccbccbb4c6bcc5b3cbbc4bc4bccbc
-                      191.b
-            iso8859   8bcccbcc18b95.33b.
-            koi8-r    8bcccbcc18b95.b128.
-            latin1    8bcccbcc18b95.33b.
-            next      8bcccbcc18b95.bb125.bb
-
-       If neither LESSCHARSET nor LESSCHARDEF is set, but any of  the  strings
-       "UTF-8",  "UTF8", "utf-8" or "utf8" is found in the LC_ALL, LC_CTYPE or
-       LANG environment variables, then the default character set is utf-8.
-
-       If that string is not found, but your  system  supports  the  setlocale
-       interface,  less  will  use  setlocale  to determine the character set.
-       setlocale is controlled by setting the  LANG  or  LC_CTYPE  environment
-       variables.
-
-       Finally,  if the setlocale interface is also not available, the default
-       character set is latin1.
-
-       Control and  binary  characters  are  displayed  in  standout  (reverse
-       video).  Each such character is displayed in caret notation if possible
-       (e.g. ^A for control-A).  Caret notation is used only if inverting  the
-       0100 bit results in a normal printable character.  Otherwise, the char-
-       acter is displayed as a hex number in angle brackets.  This format  can
-       be  changed by setting the LESSBINFMT environment variable.  LESSBINFMT
-       may begin with a "*" and one character to select the display attribute:
-       "*k"  is  blinking, "*d" is bold, "*u" is underlined, "*s" is standout,
-       and "*n" is normal.  If LESSBINFMT does not begin with  a  "*",  normal
-       attribute  is  assumed.   The remainder of LESSBINFMT is a string which
-       may include one printf-style escape sequence (a % followed by x, X,  o,
-       d,  etc.).   For  example, if LESSBINFMT is "*u[%x]", binary characters
-       are displayed in underlined hexadecimal surrounded  by  brackets.   The
-       default  if  no  LESSBINFMT  is  specified is "*s<%02X>".  Warning: the
-       result of expanding the character via LESSBINFMT must be less  than  31
-       characters.
-
-       When the character set is utf-8, the LESSUTFBINFMT environment variable
-       acts similarly to LESSBINFMT but it applies to Unicode code points that
-       were  successfully  decoded but are unsuitable for display (e.g., unas-
-       signed code points).  Its default  value  is  "<U+%04lX>".   Note  that
-       LESSUTFBINFMT  and  LESSBINFMT  share  their  display attribute setting
-       ("*x") so specifying one will affect both; LESSUTFBINFMT is read  after
-       LESSBINFMT  so  its  setting,  if any, will have priority.  Problematic
-       octets in a UTF-8 file (octets of a truncated  sequence,  octets  of  a
-       complete  but  non-shortest  form  sequence,  illegal octets, and stray
-       trailing octets) are displayed individually using LESSBINFMT so  as  to
-       facilitate diagnostic of how the UTF-8 file is ill-formed.
-
-
-PROMPTS
-       The  -P option allows you to tailor the prompt to your preference.  The
-       string given to the -P option replaces  the  specified  prompt  string.
-       Certain characters in the string are interpreted specially.  The prompt
-       mechanism is rather complicated to provide flexibility, but  the  ordi-
-       nary  user need not understand the details of constructing personalized
-       prompt strings.
-
-       A percent sign followed by a single character is expanded according  to
-       what the following character is:
-
-       %bX    Replaced  by the byte offset into the current input file.  The b
-              is followed by a single character (shown as X above) which spec-
-              ifies  the line whose byte offset is to be used.  If the charac-
-              ter is a "t", the byte offset of the top line in the display  is
-              used, an "m" means use the middle line, a "b" means use the bot-
-              tom line, a "B" means use the line just after the  bottom  line,
-              and  a  "j"  means use the "target" line, as specified by the -j
-              option.
-
-       %B     Replaced by the size of the current input file.
-
-       %c     Replaced by the column number of the text appearing in the first
-              column of the screen.
-
-       %dX    Replaced  by  the  page number of a line in the input file.  The
-              line to be used is determined by the X, as with the %b option.
-
-       %D     Replaced by the number of pages in the input  file,  or  equiva-
-              lently, the page number of the last line in the input file.
-
-       %E     Replaced  by the name of the editor (from the VISUAL environment
-              variable, or the EDITOR environment variable if  VISUAL  is  not
-              defined).  See the discussion of the LESSEDIT feature below.
-
-       %f     Replaced by the name of the current input file.
-
-       %F     Replaced  by the last component of the name of the current input
-              file.
-
-       %i     Replaced by the index of the current file in the list  of  input
-              files.
-
-       %lX    Replaced  by  the  line number of a line in the input file.  The
-              line to be used is determined by the X, as with the %b option.
-
-       %L     Replaced by the line number of the last line in the input file.
-
-       %m     Replaced by the total number of input files.
-
-       %pX    Replaced by the percent into the current input  file,  based  on
-              byte  offsets.  The line used is determined by the X as with the
-              %b option.
-
-       %PX    Replaced by the percent into the current input  file,  based  on
-              line  numbers.  The line used is determined by the X as with the
-              %b option.
-
-       %s     Same as %B.
-
-       %t     Causes any trailing spaces to be removed.  Usually used  at  the
-              end of the string, but may appear anywhere.
-
-       %x     Replaced by the name of the next input file in the list.
-
-       If any item is unknown (for example, the file size if input is a pipe),
-       a question mark is printed instead.
-
-       The format of the prompt string can be  changed  depending  on  certain
-       conditions.   A  question mark followed by a single character acts like
-       an "IF": depending on the following character, a  condition  is  evalu-
-       ated.   If the condition is true, any characters following the question
-       mark and condition character, up to  a  period,  are  included  in  the
-       prompt.   If  the condition is false, such characters are not included.
-       A colon appearing between the question mark and the period can be  used
-       to establish an "ELSE": any characters between the colon and the period
-       are included in the string if and only if the IF  condition  is  false.
-       Condition characters (which follow a question mark) may be:
-
-       ?a     True if any characters have been included in the prompt so far.
-
-       ?bX    True if the byte offset of the specified line is known.
-
-       ?B     True if the size of current input file is known.
-
-       ?c     True if the text is horizontally shifted (%c is not zero).
-
-       ?dX    True if the page number of the specified line is known.
-
-       ?e     True if at end-of-file.
-
-       ?f     True  if  there is an input filename (that is, if input is not a
-              pipe).
-
-       ?lX    True if the line number of the specified line is known.
-
-       ?L     True if the line number of the last line in the file is known.
-
-       ?m     True if there is more than one input file.
-
-       ?n     True if this is the first prompt in a new input file.
-
-       ?pX    True if the percent into the current input file, based  on  byte
-              offsets, of the specified line is known.
-
-       ?PX    True  if  the percent into the current input file, based on line
-              numbers, of the specified line is known.
-
-       ?s     Same as "?B".
-
-       ?x     True if there is a next input file  (that  is,  if  the  current
-              input file is not the last one).
-
-       Any  characters  other  than  the  special  ones (question mark, colon,
-       period, percent, and backslash) become literally part  of  the  prompt.
-       Any  of  the special characters may be included in the prompt literally
-       by preceding it with a backslash.
-
-       Some examples:
-
-       ?f%f:Standard input.
-
-       This prompt prints the filename, if known; otherwise the string  "Stan-
-       dard input".
-
-       ?f%f .?ltLine %lt:?pt%pt\%:?btByte %bt:-...
-
-       This  prompt  would print the filename, if known.  The filename is fol-
-       lowed by the line number, if known, otherwise  the  percent  if  known,
-       otherwise  the  byte  offset  if  known.  Otherwise, a dash is printed.
-       Notice how each question mark has a matching  period,  and  how  the  %
-       after the %pt is included literally by escaping it with a backslash.
-
-       ?n?f%f .?m(file %i of %m) ..?e(END) ?x- Next\: %x..%t
-
-       This  prints  the  filename if this is the first prompt in a file, fol-
-       lowed by the "file N of N" message if there  is  more  than  one  input
-       file.   Then,  if  we are at end-of-file, the string "(END)" is printed
-       followed by the name of the next file, if there is one.   Finally,  any
-       trailing spaces are truncated.  This is the default prompt.  For refer-
-       ence, here are the defaults for  the  other  two  prompts  (-m  and  -M
-       respectively).   Each  is  broken  into  two lines here for readability
-       only.
-
-       ?n?f%f .?m(file %i of %m) ..?e(END) ?x- Next\: %x.:
-            ?pB%pB\%:byte %bB?s/%s...%t
-
-       ?f%f .?n?m(file %i of %m) ..?ltlines %lt-%lb?L/%L. :
-            byte %bB?s/%s. .?e(END) ?x- Next\: %x.:?pB%pB\%..%t
-
-       And here is the default message produced by the = command:
-
-       ?f%f .?m(file %i of %m) .?ltlines %lt-%lb?L/%L. .
-            byte %bB?s/%s. ?e(END) :?pB%pB\%..%t
-
-       The prompt expansion features are also used for another purpose: if  an
-       environment  variable LESSEDIT is defined, it is used as the command to
-       be executed when the v command is  invoked.   The  LESSEDIT  string  is
-       expanded  in the same way as the prompt strings.  The default value for
-       LESSEDIT is:
-
-            %E ?lm+%lm. %f
-
-       Note that this expands to the editor name, followed by a + and the line
-       number,  followed by the file name.  If your editor does not accept the
-       "+linenumber" syntax, or has other differences  in  invocation  syntax,
-       the LESSEDIT variable can be changed to modify this default.
-
-
-SECURITY
-       When  the  environment  variable LESSSECURE is set to 1, less runs in a
-       "secure" mode.  This means these features are disabled:
-
-              !      the shell command
-
-              |      the pipe command
-
-              :e     the examine command.
-
-              v      the editing command
-
-              s  -o  log files
-
-              -k     use of lesskey files
-
-              -t     use of tags files
-
-                     metacharacters in filenames, such as *
-
-                     filename completion (TAB, ^L)
-
-       Less can also be compiled to be permanently in "secure" mode.
-
-
-COMPATIBILITY WITH MORE
-       If the environment variable LESS_IS_MORE is set to 1, or if the program
-       is  invoked via a file link named "more", less behaves (mostly) in con-
-       formance with the POSIX "more" command specification.   In  this  mode,
-       less behaves differently in these ways:
-
-       The  -e  option  works  differently.  If the -e option is not set, less
-       behaves as if the -E option were set.  If the -e option  is  set,  less
-       behaves as if the -e and -F options were set.
-
-       The  -m  option  works  differently.   If the -m option is not set, the
-       medium prompt is used, and it is prefixed with the  string  "--More--".
-       If the -m option is set, the short prompt is used.
-
-       The  -n  option acts like the -z option.  The normal behavior of the -n
-       option is unavailable in this mode.
-
-       The parameter to the -p option is taken to be  a  less  command  rather
-       than a search pattern.
-
-       The  LESS  environment  variable  is  ignored, and the MORE environment
-       variable is used in its place.
-
-
-ENVIRONMENT VARIABLES
-       Environment variables may be specified either in the system environment
-       as  usual,  or  in  a  lesskey  (1) file.  If environment variables are
-       defined in more than one place, variables defined in  a  local  lesskey
-       file  take precedence over variables defined in the system environment,
-       which take precedence over variables defined in the system-wide lesskey
-       file.
-
-       COLUMNS
-              Sets the number of columns on the screen.  Takes precedence over
-              the number of columns specified by the TERM variable.   (But  if
-              you  have  a  windowing  system  which  supports  TIOCGWINSZ  or
-              WIOCGETD, the window system's idea  of  the  screen  size  takes
-              precedence over the LINES and COLUMNS environment variables.)
-
-       EDITOR The name of the editor (used for the v command).
-
-       HOME   Name  of  the user's home directory (used to find a lesskey file
-              on Unix and OS/2 systems).
-
-       HOMEDRIVE, HOMEPATH
-              Concatenation of the HOMEDRIVE and  HOMEPATH  environment  vari-
-              ables is the name of the user's home directory if the HOME vari-
-              able is not set (only in the Windows version).
-
-       INIT   Name of the user's init directory (used to find a  lesskey  file
-              on OS/2 systems).
-
-       LANG   Language for determining the character set.
-
-       LC_CTYPE
-              Language for determining the character set.
-
-       LESS   Options which are passed to less automatically.
-
-       LESSANSIENDCHARS
-              Characters  which may end an ANSI color escape sequence (default
-              "m").
-
-       LESSANSIMIDCHARS
-              Characters which may appear between the ESC  character  and  the
-              end   character  in  an  ANSI  color  escape  sequence  (default
-              "0123456789;[?!"'#%()*+ ".
-
-       LESSBINFMT
-              Format for displaying non-printable, non-control characters.
-
-       LESSCHARDEF
-              Defines a character set.
-
-       LESSCHARSET
-              Selects a predefined character set.
-
-       LESSCLOSE
-              Command line to invoke the (optional) input-postprocessor.
-
-       LESSECHO
-              Name of the lessecho program (default "lessecho").  The lessecho
-              program  is needed to expand metacharacters, such as * and ?, in
-              filenames on Unix systems.
-
-       LESSEDIT
-              Editor prototype string (used for the v command).   See  discus-
-              sion under PROMPTS.
-
-       LESSGLOBALTAGS
-              Name  of  the command used by the -t option to find global tags.
-              Normally should be set to "global" if your system has the global
-              (1) command.  If not set, global tags are not used.
-
-       LESSHISTFILE
-              Name  of  the  history file used to remember search commands and
-              shell commands between invocations of less.  If set  to  "-"  or
-              "/dev/null",  a  history  file  is  not  used.   The  default is
-              "$HOME/.lesshst" on Unix systems, "$HOME/_lesshst"  on  DOS  and
-              Windows  systems,  or "$HOME/lesshst.ini" or "$INIT/lesshst.ini"
-              on OS/2 systems.
-
-       LESSHISTSIZE
-              The maximum number of commands to save in the history file.  The
-              default is 100.
-
-       LESSKEY
-              Name of the default lesskey(1) file.
-
-       LESSKEY_SYSTEM
-              Name of the default system-wide lesskey(1) file.
-
-       LESSMETACHARS
-              List  of characters which are considered "metacharacters" by the
-              shell.
-
-       LESSMETAESCAPE
-              Prefix which less will add before each metacharacter in  a  com-
-              mand  sent  to the shell.  If LESSMETAESCAPE is an empty string,
-              commands containing metacharacters will not  be  passed  to  the
-              shell.
-
-       LESSOPEN
-              Command line to invoke the (optional) input-preprocessor.
-
-       LESSSECURE
-              Runs less in "secure" mode.  See discussion under SECURITY.
-
-       LESSSEPARATOR
-              String  to  be  appended to a directory name in filename comple-
-              tion.
-
-       LESSUTFBINFMT
-              Format for displaying non-printable Unicode code points.
-
-       LESS_IS_MORE
-              Emulate the more (1) command.
-
-       LINES  Sets the number of lines on the screen.  Takes  precedence  over
-              the number of lines specified by the TERM variable.  (But if you
-              have a windowing system which supports TIOCGWINSZ  or  WIOCGETD,
-              the  window  system's  idea  of the screen size takes precedence
-              over the LINES and COLUMNS environment variables.)
-
-       MORE   Options which are passed to less automatically when  running  in
-              more compatible mode.
-
-       PATH   User's  search  path  (used to find a lesskey file on MS-DOS and
-              OS/2 systems).
-
-       SHELL  The shell used to execute the ! command, as well  as  to  expand
-              filenames.
-
-       TERM   The type of terminal on which less is being run.
-
-       VISUAL The name of the editor (used for the v command).
-
-
-SEE ALSO
-       lesskey(1)
-
-
-COPYRIGHT
-       Copyright (C) 1984-2012  Mark Nudelman
-
-       less  is  part of the GNU project and is free software.  You can redis-
-       tribute it and/or modify it under the terms of either (1) the GNU  Gen-
-       eral  Public  License  as published by the Free Software Foundation; or
-       (2) the Less License.  See the file README in the less distribution for
-       more details regarding redistribution.  You should have received a copy
-       of the GNU General Public License along with the source for  less;  see
-       the  file  COPYING.   If not, write to the Free Software Foundation, 59
-       Temple Place, Suite 330, Boston, MA  02111-1307, USA.  You should  also
-       have received a copy of the Less License; see the file LICENSE.
-
-       less is distributed in the hope that it will be useful, but WITHOUT ANY
-       WARRANTY; without even the implied warranty of MERCHANTABILITY or  FIT-
-       NESS  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-       more details.
-
-
-AUTHOR
-       Mark Nudelman
-       Send bug reports or comments to <bug-less@gnu.org>
-       See http://www.greenwoodsoftware.com/less/bugs.html for the latest list
-       of known bugs in less.
-       For more information, see the less homepage at
-       http://www.greenwoodsoftware.com/less.
-
-
-
-                           Version 458: 04 Apr 2013                    LESS(1)
diff --git a/contrib/less/lessecho.man b/contrib/less/lessecho.man
deleted file mode 100644
index 470a00e..0000000
--- a/contrib/less/lessecho.man
+++ /dev/null
@@ -1,54 +0,0 @@
-LESSECHO(1)                                                        LESSECHO(1)
-
-
-
-NAME
-       lessecho - expand metacharacters
-
-SYNOPSIS
-       lessecho [-ox] [-cx] [-pn] [-dn] [-mx] [-nn] [-ex] [-a] file ...
-
-DESCRIPTION
-       lessecho  is a program that simply echos its arguments on standard out-
-       put.  But any metacharacter in the output is preceded  by  an  "escape"
-       character, which by default is a backslash.
-
-OPTIONS
-       A summary of options is included below.
-
-       -ex    Specifies  "x", rather than backslash, to be the escape char for
-              metachars.  If x is "-", no escape char is  used  and  arguments
-              containing metachars are surrounded by quotes instead.
-
-       -ox    Specifies  "x",  rather  than double-quote, to be the open quote
-              character, which is used if the -e- option is specified.
-
-       -cx    Specifies "x" to be the close quote character.
-
-       -pn    Specifies "n" to be the open quote character, as an integer.
-
-       -dn    Specifies "n" to be the close quote character, as an integer.
-
-       -mx    Specifies "x" to be a metachar.  By default, no  characters  are
-              considered metachars.
-
-       -nn    Specifies "n" to be a metachar, as an integer.
-
-       -fn    Specifies  "n"  to be the escape char for metachars, as an inte-
-              ger.
-
-       -a     Specifies that all arguments are to be quoted.  The  default  is
-              that only arguments containing metacharacters are quoted
-
-SEE ALSO
-       less(1)
-
-AUTHOR
-       This  manual  page  was written by Thomas Schoepf <schoepf@debian.org>,
-       for the Debian GNU/Linux system (but may be used by others).
-
-       Send bug reports or comments to bug-less@gnu.org.
-
-
-
-                           Version 458: 04 Apr 2013                LESSECHO(1)
diff --git a/contrib/less/lesskey.man b/contrib/less/lesskey.man
deleted file mode 100644
index 9864d40..0000000
--- a/contrib/less/lesskey.man
+++ /dev/null
@@ -1,356 +0,0 @@
-LESSKEY(1)                                                          LESSKEY(1)
-
-
-
-NAME
-       lesskey - specify key bindings for less
-
-SYNOPSIS
-       lesskey [-o output] [--] [input]
-       lesskey [--output=output] [--] [input]
-       lesskey -V
-       lesskey --version
-
-DESCRIPTION
-       Lesskey  is  used  to specify a set of key bindings to be used by less.
-       The input file is a text file which describes the key bindings.  If the
-       input  file is "-", standard input is read.  If no input file is speci-
-       fied, a standard filename is used as the name of the input file,  which
-       depends  on  the  system being used: On Unix systems, $HOME/.lesskey is
-       used; on MS-DOS systems, $HOME/_lesskey is used; and  on  OS/2  systems
-       $HOME/lesskey.ini  is used, or $INIT/lesskey.ini if $HOME is undefined.
-       The output file is a binary file which is used by less.  If  no  output
-       file  is  specified,  and  the environment variable LESSKEY is set, the
-       value of LESSKEY is used as the name of the output file.  Otherwise,  a
-       standard filename is used as the name of the output file, which depends
-       on the system being used: On Unix  and  OS-9  systems,  $HOME/.less  is
-       used;  on  MS-DOS  systems,  $HOME/_less  is used; and on OS/2 systems,
-       $HOME/less.ini is used, or $INIT/less.ini if $HOME  is  undefined.   If
-       the output file already exists, lesskey will overwrite it.
-
-       The  -V  or --version option causes lesskey to print its version number
-       and immediately exit.  If -V or --version is present, other options and
-       arguments are ignored.
-
-       The  input  file consists of one or more sections.  Each section starts
-       with a line that identifies the type  of  section.   Possible  sections
-       are:
-
-       #command
-              Defines new command keys.
-
-       #line-edit
-              Defines new line-editing keys.
-
-       #env   Defines environment variables.
-
-       Blank  lines  and  lines which start with a pound sign (#) are ignored,
-       except for the special section header lines.
-
-
-COMMAND SECTION
-       The command section begins with the line
-
-       #command
-
-       If the command section is the first section in the file, this line  may
-       be omitted.  The command section consists of lines of the form:
-
-            string <whitespace> action [extra-string] <newline>
-
-       Whitespace  is  any  sequence  of  one or more spaces and/or tabs.  The
-       string is the command key(s) which invoke the action.  The  string  may
-       be a single command key, or a sequence of up to 15 keys.  The action is
-       the name of the less action, from the list below.   The  characters  in
-       the  string may appear literally, or be prefixed by a caret to indicate
-       a control key.  A backslash followed by one to three octal  digits  may
-       be  used  to  specify a character by its octal value.  A backslash fol-
-       lowed by certain characters specifies input characters as follows:
-
-       \b     BACKSPACE
-
-       \e     ESCAPE
-
-       \n     NEWLINE
-
-       \r     RETURN
-
-       \t     TAB
-
-       \ku    UP ARROW
-
-       \kd    DOWN ARROW
-
-       \kr    RIGHT ARROW
-
-       \kl    LEFT ARROW
-
-       \kU    PAGE UP
-
-       \kD    PAGE DOWN
-
-       \kh    HOME
-
-       \ke    END
-
-       \kx    DELETE
-
-       A backslash followed by any other character indicates that character is
-       to  be taken literally.  Characters which must be preceded by backslash
-       include caret, space, tab and the backslash itself.
-
-       An action may be followed by an "extra" string.  When such a command is
-       entered while running less, the action is performed, and then the extra
-       string is parsed, just as if it were typed in to  less.   This  feature
-       can  be used in certain cases to extend the functionality of a command.
-       For example, see the "{" and ":t" commands in the example  below.   The
-       extra  string  has  a  special meaning for the "quit" action: when less
-       quits, first character of the extra string is used as its exit status.
-
-
-EXAMPLE
-       The following input file describes the set of default command keys used
-       by less:
-
-            #command
-            \r        forw-line
-            \n        forw-line
-            e         forw-line
-            j         forw-line
-            \kd  forw-line
-            ^E        forw-line
-            ^N        forw-line
-            k         back-line
-            y         back-line
-            ^Y        back-line
-            ^K        back-line
-            ^P        back-line
-            J         forw-line-force
-            K         back-line-force
-            Y         back-line-force
-            d         forw-scroll
-            ^D        forw-scroll
-            u         back-scroll
-            ^U        back-scroll
-            \40  forw-screen
-            f         forw-screen
-            ^F        forw-screen
-            ^V        forw-screen
-            \kD  forw-screen
-            b         back-screen
-            ^B        back-screen
-            \ev       back-screen
-            \kU  back-screen
-            z         forw-window
-            w         back-window
-            \e\40          forw-screen-force
-            F         forw-forever
-            \eF       forw-until-hilite
-            R         repaint-flush
-            r         repaint
-            ^R        repaint
-            ^L        repaint
-            \eu       undo-hilite
-            g         goto-line
-            \kh  goto-line
-            <         goto-line
-            \e<       goto-line
-            p         percent
-            %         percent
-            \e[       left-scroll
-            \e]       right-scroll
-            \e(       left-scroll
-            \e)       right-scroll
-            {         forw-bracket {}
-            }         back-bracket {}
-            (         forw-bracket ()
-            )         back-bracket ()
-            [         forw-bracket []
-            ]         back-bracket []
-            \e^F      forw-bracket
-            \e^B      back-bracket
-            G         goto-end
-            \e>       goto-end
-            >         goto-end
-            \ke  goto-end
-            =         status
-            ^G        status
-            :f        status
-            /         forw-search
-            ?         back-search
-            \e/       forw-search *
-            \e?       back-search *
-            n         repeat-search
-            \en       repeat-search-all
-            N         reverse-search
-            \eN       reverse-search-all
-            &         filter
-            m         set-mark
-            '         goto-mark
-            ^X^X      goto-mark
-            E         examine
-            :e        examine
-            ^X^V      examine
-            :n        next-file
-            :p        prev-file
-            t         next-tag
-            T         prev-tag
-            :x        index-file
-            :d        remove-file
-            -         toggle-option
-            :t        toggle-option t
-            s         toggle-option o
-            _         display-option
-            |         pipe
-            v         visual
-            !         shell
-            +         firstcmd
-            H         help
-            h         help
-            V         version
-            0         digit
-            1         digit
-            2         digit
-            3         digit
-            4         digit
-            5         digit
-            6         digit
-            7         digit
-            8         digit
-            9         digit
-            q         quit
-            Q         quit
-            :q        quit
-            :Q        quit
-            ZZ        quit
-
-
-PRECEDENCE
-       Commands  specified  by  lesskey  take precedence over the default com-
-       mands.  A default command key may be disabled by including  it  in  the
-       input  file  with  the  action  "invalid".  Alternatively, a key may be
-       defined to do nothing by using the action  "noaction".   "noaction"  is
-       similar to "invalid", but less will give an error beep for an "invalid"
-       command, but not for a "noaction" command.  In  addition,  ALL  default
-       commands may be disabled by adding this control line to the input file:
-
-       #stop
-
-       This  will  cause  all  default commands to be ignored.  The #stop line
-       should be the last line in that section of the file.
-
-       Be aware that #stop can be dangerous.  Since all default  commands  are
-       disabled, you must provide sufficient commands before the #stop line to
-       enable all necessary actions.  For example, failure to provide a "quit"
-       command can lead to frustration.
-
-
-LINE EDITING SECTION
-       The line-editing section begins with the line:
-
-       #line-edit
-
-       This  section specifies new key bindings for the line editing commands,
-       in a manner similar to the way key bindings for ordinary  commands  are
-       specified  in  the #command section.  The line-editing section consists
-       of a list of keys and actions, one per line as in the example below.
-
-
-EXAMPLE
-       The following input file describes the set of default line-editing keys
-       used by less:
-
-            #line-edit
-            \t        forw-complete
-            \17       back-complete
-            \e\t      back-complete
-            ^L        expand
-            ^V        literal
-            ^A        literal
-            \el       right
-            \kr       right
-            \eh       left
-            \kl       left
-            \eb       word-left
-            \e\kl     word-left
-            \ew       word-right
-            \e\kr     word-right
-            \ei       insert
-            \ex       delete
-            \kx       delete
-            \eX       word-delete
-            \ekx      word-delete
-            \e\b      word-backspace
-            \e0       home
-            \kh       home
-            \e$       end
-            \ke       end
-            \ek       up
-            \ku       up
-            \ej       down
-            ^G        abort
-
-
-
-LESS ENVIRONMENT VARIABLES
-       The environment variable section begins with the line
-
-       #env
-
-       Following  this  line  is  a  list of environment variable assignments.
-       Each line consists of an environment variable name, an equals sign  (=)
-       and  the value to be assigned to the environment variable.  White space
-       before and after the equals sign is  ignored.   Variables  assigned  in
-       this  way  are visible only to less.  If a variable is specified in the
-       system environment and also in a lesskey file, the value in the lesskey
-       file  takes precedence.  Although the lesskey file can be used to over-
-       ride variables set in the environment, the main  purpose  of  assigning
-       variables  in the lesskey file is simply to have all less configuration
-       information stored in one file.
-
-
-EXAMPLE
-       The following input file sets the -i option whenever less is  run,  and
-       specifies the character set to be "latin1":
-
-            #env
-            LESS = -i
-            LESSCHARSET = latin1
-
-
-
-SEE ALSO
-       less(1)
-
-
-WARNINGS
-       On  MS-DOS and OS/2 systems, certain keys send a sequence of characters
-       which start with a NUL character (0).  This  NUL  character  should  be
-       represented as \340 in a lesskey file.
-
-
-COPYRIGHT
-       Copyright (C) 2000-2012  Mark Nudelman
-
-       lesskey is part of the GNU project and is free software; you can redis-
-       tribute it and/or modify it under the terms of the GNU  General  Public
-       License as published by the Free Software Foundation; either version 2,
-       or (at your option) any later version.
-
-       lesskey is distributed in the hope that it will be useful, but  WITHOUT
-       ANY  WARRANTY;  without even the implied warranty of MERCHANTABILITY or
-       FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General  Public  License
-       for more details.
-
-       You should have received a copy of the GNU General Public License along
-       with lesskey; see the file COPYING.  If not, write to the Free Software
-       Foundation, 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
-
-
-AUTHOR
-       Mark Nudelman <bug-less@gnu.org>
-       Send bug reports or comments to bug-less@gnu.org.
-
-
-
-                           Version 458: 04 Apr 2013                 LESSKEY(1)
diff --git a/contrib/less/mkfuncs.awk b/contrib/less/mkfuncs.awk
deleted file mode 100644
index dea28ac..0000000
--- a/contrib/less/mkfuncs.awk
+++ /dev/null
@@ -1,9 +0,0 @@
-BEGIN { FS="("; state = 0 }
-
-/^	public/ { ftype = $0; state = 1 }
-
-{ if (state == 1)
-	state = 2
-  else if (state == 2)
-	{ print ftype,$1,"();"; state = 0 }
-}
diff --git a/contrib/less/mkinstalldirs b/contrib/less/mkinstalldirs
deleted file mode 100755
index 91f6d04..0000000
--- a/contrib/less/mkinstalldirs
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-# mkinstalldirs --- make directory hierarchy
-# Author: Noah Friedman <friedman@prep.ai.mit.edu>
-# Created: 1993-05-16
-# Last modified: 1994-03-25
-# Public domain
-
-errstatus=0
-
-for file in ${1+"$@"} ; do 
-   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
-   shift
-
-   pathcomp=
-   for d in ${1+"$@"} ; do
-     pathcomp="$pathcomp$d"
-     case "$pathcomp" in
-       -* ) pathcomp=./$pathcomp ;;
-     esac
-
-     if test ! -d "$pathcomp"; then
-        echo "mkdir $pathcomp" 1>&2
-        mkdir "$pathcomp" || errstatus=$?
-     fi
-
-     pathcomp="$pathcomp/"
-   done
-done
-
-exit $errstatus
-
-# mkinstalldirs ends here