As threatened, drop support for source upgrades from pre-5.3.

Inspired by:	obrien

1 files changed, 0 insertions, 54 deletions

diff --git a/tools/build/Makefile b/tools/build/Makefile
index 885a4c8..5b76f09 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -9,65 +9,11 @@ INCS=
 
 BOOTSTRAPPING?=	0
 
-# Some tools need <sys/endian.h>.
-.if !exists(/usr/include/sys/endian.h) || ${BOOTSTRAPPING} < 500000
-INCSGROUPS+=	SYSHDRS
-SYSHDRS=	endian.h
-SYSHDRSDIR=	${INCLUDEDIR}/sys
-.endif
-
-# gnu/usr.bin/binutils/ld needs <elf-hints.h>.
-.if !exists(/usr/include/elf-hints.h)
-INCS+=		elf-hints.h
-.endif
-
-# lib/libncurses needs <stdbool.h>.
-.if !exists(/usr/include/stdbool.h)
-INCS+=		stdbool.h
-.endif
-
 # usr.bin/mklocale needs <runefile.h>.
 .if !exists(/usr/include/runefile.h)
 INCS+=		runefile.h
 .endif
 
-# usr.bin/xargs needs <nl_langinfo.h>.
-.if !exists(/usr/include/langinfo.h)
-INCS+=		langinfo.h
-.endif
-
-# Some tools need basename(3).
-.if !exists(/usr/include/libgen.h)
-INCS+=		libgen.h
-.PATH: ${.CURDIR}/../../lib/libc/gen
-SRCS+=		basename.c
-.endif
-
-# Some tools need {get,set}progname(3).
-.if ( ${BOOTSTRAPPING} < 440001 || \
-    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500023 ))
-SRCS+=		progname.c
-.endif
-
-# install(1) needs strtofflags(3).
-.if ( ${BOOTSTRAPPING} < 400021 || \
-    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500007 ))
-.PATH: ${.CURDIR}/../../lib/libc/gen
-SRCS+=		strtofflags.c
-.endif
-
-# Lot of tools need <getopt.h> and getopt_long(3).
-.if !exists(/usr/include/getopt.h) || ${BOOTSTRAPPING} < 502104
-INCS+=		getopt.h
-.PATH: ${.CURDIR}/../../lib/libc/stdlib
-SRCS+=		getopt_long.c
-.endif
-
-# Some tools depend on a new <regex.h> not requiring <sys/types.h>.
-.if ${BOOTSTRAPPING} < 500042
-INCS+=		regex.h
-.endif
-
 .if empty(SRCS)
 SRCS=		dummy.c
 .endif