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#
# A number of header files in sys/* have, going back to 7th Edition Unix in
# 1979, reqiured other files (like sys/types.h) to compile. Likewise the 4BSD
# networking code has had prerequisites. However, going back to around the turn
# of the century, other systems have made them be independently includable
# (wide-spread header include protection post-dates 7th edition Unix by maybe 4
# or 5 years judging from netnews sources). Start down the path of making them
# all independently includable by creating this test that fails buildworld when
# they are not.
#
# The _foo.h files are excluded as they are internal-only headers and/or have
# special requirements. Since the purpose of this is to allow autoconfig
# programs to detect FreeBSD has different headers, omitting internal
# headers cuts down on the noise w/o causing problems for the goal.
#
LIB= test-includes
INTERNALLIB= This is a compile-only test
MAN=
HDRS!= (cd ${SRCTOP}/sys; ls sys/[^_]*.h | sort ; ls net*/[^_]*.h | sort)
NO_PIC= yes
# Some files have to be clean for extra defines too...
CFLAGS.event.c= -D_WANT_KEVENT32 -D_WANT_FREEBSD11_KEVENT
.include "badfiles.inc"
.for h in ${HDRS}
.if !${BADHDRS:M${h}}
SRCS+= ${h:R}.c
CLEANFILES+=${h:R}.c
${h:R}.c:
echo "#include <$h>" > ${.TARGET}
.endif
.endfor
test-includes: lib${LIB}.a .PHONY
#
# Target to make the current known bad list. In general, this list should only
# ever shrink and never grow.
#
.PHONY: badfiles.inc
badfiles.inc:
@(cd ${SRCTOP}/sys; \
echo "# DO NOT EDIT-- this file is automatically @""generated."; \
echo "BADHDRS= \\"; \
for i in ${HDRS}; do \
echo "#include <$$i>" | \
${CC} ${CFLAGS} -xc - -c -o /dev/null 2> /dev/null || \
echo " $$i \\"; \
done; \
echo) > ${.CURDIR}/badfiles.inc
.include <bsd.lib.mk>
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