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authorian <ian@FreeBSD.org>2013-09-21 22:36:07 +0000
committerian <ian@FreeBSD.org>2013-09-21 22:36:07 +0000
commitbe20f1474519ef183bd8439ec2df91b6cc2b641c (patch)
tree1cc7841aa918d44e6c78e3f0eb1caae1fbbf1faa /include/Makefile
parentb32fed86db62816ab222f56c1f859a444ac8648b (diff)
downloadFreeBSD-src-be20f1474519ef183bd8439ec2df91b6cc2b641c.zip
FreeBSD-src-be20f1474519ef183bd8439ec2df91b6cc2b641c.tar.gz
Create a separate script to generate osreldate.h rather than sourcing
newvers.sh into a temporary subshell with inline make rules. Using a separate script fixes a variety of problems, including establishing the correct dependencies in the makefiles. It also eliminates a problem with the way newvers.sh uses `realpath $0`, because $0 expands differently within a script sourced into a rule in a makefile depending on the version of make and of /bin/sh being used. The latter can cause build breakage in a cross-build environment, and can also make it difficult to compile 10.0 on older pre-10.0 systems. PR: 160646 174422 Submitted by: Garrett Cooper <yaneurabeya@gmail.com> Approved by: re (gjb) MFC after: 2 weeks
Diffstat (limited to 'include/Makefile')
-rw-r--r--include/Makefile23
1 files changed, 10 insertions, 13 deletions
diff --git a/include/Makefile b/include/Makefile
index ba41814..0559e2a 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -104,19 +104,16 @@ SHARED?= copies
INCS+= osreldate.h
-osreldate.h: ${.CURDIR}/../sys/conf/newvers.sh ${.CURDIR}/../sys/sys/param.h \
- ${.CURDIR}/Makefile
- @${ECHO} creating osreldate.h from newvers.sh
- @MAKE=${MAKE}; \
- PARAMFILE=${.CURDIR}/../sys/sys/param.h; \
- . ${.CURDIR}/../sys/conf/newvers.sh; \
- echo "$$COPYRIGHT" > osreldate.h; \
- echo "#ifdef _KERNEL" >> osreldate.h; \
- echo "#error \"<osreldate.h> cannot be used in the kernel, use <sys/param.h>\"" >> osreldate.h; \
- echo "#else" >> osreldate.h; \
- echo "#undef __FreeBSD_version" >> osreldate.h; \
- echo "#define __FreeBSD_version $$RELDATE" >> osreldate.h; \
- echo "#endif" >> osreldate.h
+NEWVERS_SH= ${.CURDIR}/../sys/conf/newvers.sh
+PARAM_H= ${.CURDIR}/../sys/sys/param.h
+MK_OSRELDATE_SH= ${.CURDIR}/mk-osreldate.sh
+
+osreldate.h vers.c: ${NEWVERS_SH} ${PARAM_H} ${MK_OSRELDATE_SH}
+ env ECHO="${ECHO}" \
+ MAKE="${MAKE}" \
+ NEWVERS_SH=${NEWVERS_SH} \
+ PARAM_H=${PARAM_H} \
+ ${MK_OSRELDATE_SH}
.for i in ${LHDRS}
INCSLINKS+= sys/$i ${INCLUDEDIR}/$i
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