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Cause an error during 'make install' if trying to compile with CC.

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This is limited to src-tree builds, meaning not extended to ports or other
out-of-tree builds.

This will help ensure that read-only OBJDIRS will be respected at install-time
by causing a more consistent failure for those who don't use a read-only
OBJDIR.  It also will cause Jenkins to yell.  This is a better solution than
trying to see CC=false as has been attempted and discussed before.

Of course this is only relevant for files generated by CC.

Disable this for META_MODE since it will detect the CFLAGS/command
change and force a rebuild.

Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
bdrewery 2016-04-18 18:14:02 +00:00
parent 0cc8656eb9
commit 731f354016
1 changed files with 7 additions and 0 deletions
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7
share/mk/bsd.sys.mk
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@ -178,6 +178,13 @@ ACFLAGS+= ${ACFLAGS.${.IMPSRC:T}}
CFLAGS+= ${CFLAGS.${.IMPSRC:T}}
CXXFLAGS+= ${CXXFLAGS.${.IMPSRC:T}}
.if defined(SRCTOP)
# Prevent rebuilding during install to support read-only objdirs.
.if make(install) && empty(.MAKE.MODE:Mmeta)
CFLAGS+= ERROR-tried-to-rebuild-during-make-install
.endif
.endif
# Tell bmake not to mistake standard targets for things to be searched for
# or expect to ever be up-to-date.
PHONY_NOTMAIN = analyze afterdepend afterinstall all beforedepend beforeinstall \