Author: emaste
Date: Mon Dec 15 14:25:42 2014
New Revision: 275804
URL: https://svnweb.freebsd.org/changeset/base/275804
Log:
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
Modified:
head/gnu/usr.bin/cc/cc1plus/Makefile
Modified: head/gnu/usr.bin/cc/cc1plus/Makefile
==============================================================================
--- head/gnu/usr.bin/cc/cc1plus/Makefile Mon Dec 15 12:16:09 2014
(r275803)
+++ head/gnu/usr.bin/cc/cc1plus/Makefile Mon Dec 15 14:25:42 2014
(r275804)
@@ -30,7 +30,7 @@ LDADD= ${LIBBACKEND} ${LIBCPP} ${LIBDECN
# 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}
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