Remove empty generated file upon gperf failure

Prior to this change the build could fail as follows, if gperf is not
available (or fails):

  - make(1) stops due to the gperf error, but an empty target file
    (cfns.h) is still created
  - the empty cfns.h is newer than the source cfns.gperf so it is not
    regenerated on subsequent builds
  - the gcc build fails (undefined reference to libc_name_p)

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days

This commit is contained in:

Ed Maste

2014-12-15 14:25:42 +00:00

parent dd279f7aaa

commit a47f6b781a

1 changed files with 1 additions and 1 deletions

									
										gnu/usr.bin/cc/cc1plus/Makefile
									
		+1
		-1
	
												View File
												
				@@ -30,7 +30,7 @@ LDADD=	${LIBBACKEND} ${LIBCPP} ${LIBDECNUMBER} ${LIBIBERTY}

				# C++ parser

				cfns.h: cfns.gperf

					gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L ANSI-C \

					    ${.ALLSRC} > ${.TARGET}

					    ${.ALLSRC} > ${.TARGET} || (rm -f ${.TARGET}; false)

				CLEANFILES= cfns.h

				DOBJS+=	${SRCS:N*.h:R:S/$/.o/g}