Flex version 2.4.7 from LBL

Reviewed by:	Geoff.

1 files changed, 57 insertions, 0 deletions

diff --git a/usr.bin/lex/Makefile b/usr.bin/lex/Makefile
new file mode 100644
index 0000000..7f88e6ee
--- /dev/null
+++ b/usr.bin/lex/Makefile
@@ -0,0 +1,57 @@
+# $Id$
+#
+# By default, flex will be configured to generate 8-bit scanners only if the
+# -8 flag is given.  If you want it to always generate 8-bit scanners, add
+# "-DDEFAULT_CSIZE=256" to CFLAGS.  Note that doing so will double the size
+# of all uncompressed scanners.
+#
+# Bootstrapping of lex is handled automatically.
+# ALso note that flex.skel no longer gets installed.
+#
+# XXX Todo:
+#	Install as lex++, and install FlexLexer.h
+
+PROG=		lex
+LINKS=		${BINDIR}/lex ${BINDIR}/flex 
+#LINKS+=	${BINDIR}/lex ${BINDIR}/lex++ ${BINDIR}/flex ${BINDIR}/flex++
+
+SRCS=		ccl.c dfa.c ecs.c gen.c main.c misc.c nfa.c parse.y \
+		skel.c sym.c tblcmp.c yylex.c
+OBJS+=		scan.o
+LFLAGS+=	-is
+CFLAGS+=	-I. -I${.CURDIR}
+MAN1=		flex.1 flexdoc.1
+MLINKS=		flex.1 lex.1 flexdoc.1 lexdoc.1
+
+CLEANFILES+=	parse.c parse.h scan.c y.tab.h
+
+
+SUBDIR=		lib
+
+.depend: parse.h
+
+parse.c parse.h: parse.y
+	$(YACC) -d $(.CURDIR)/parse.y
+	mv y.tab.c parse.c
+	mv y.tab.h parse.h
+
+.if exists(/usr/bin/lex)
+scan.o:	parse.c
+.else
+# We must bootstrap
+scan.o: scan.c parse.h
+
+scan.c:
+	@echo "Bootstrapping flex"
+	@rm -f scan.c
+	@cp -pf ${.CURDIR}/initscan.c scan.c
+.endif
+
+test: check
+check: $(PROG)
+	./$(PROG) $(LFLAGS) -t $(COMPRESSION) $(.CURDIR)/scan.l \
+	| sed s,\"$(.CURDIR)/scan.l",\"scan.l", \
+	| diff $(.CURDIR)/initscan.c -
+	@echo "Check successful"
+
+.include <bsd.prog.mk>