Merge from CheriBSD:
commit 1d1b908107255ffdff4d17f015d8f057d73cc6cb Author: Brooks Davis <brooks@one-eyed-alien.net> Date: Fri Mar 28 16:24:45 2014 +0000 Add a long needed seatbelt. Exit with an error when make is called without a target at the top level rather than poluting the source tree and causing use confusion in future builds. commit a9d9aa341b2f4308a227ab460ba85f1f287ad028 Author: Brooks Davis <brooks@one-eyed-alien.net> Date: Tue Apr 29 16:06:12 2014 +0000 Simplify seatbelt added in 1d1b908 based in feedback. Discussed with: imp@FreeBSD.org Reviewed by: imp Sponsored by: DARPA, AFRL
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Makefile
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Makefile
@ -238,8 +238,17 @@ tinderbox toolchains kernel-toolchains: .MAKE
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${TGTS}:
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${_+_}@cd ${.CURDIR}; ${_MAKE} ${.TARGET}
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# Set a reasonable default
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.MAIN: all
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# The historic default "all" target creates files which may cause stale
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# or (in the cross build case) unlinkable results. Fail with an error
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# when no target is given. The users can explicitly specify "all"
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# if they want the historic behavior.
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.MAIN: _guard
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_guard:
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@echo
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@echo "Explicit target required (use \"all\" for historic behavior)"
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@echo
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@false
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STARTTIME!= LC_ALL=C date
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CHECK_TIME!= find ${.CURDIR}/sys/sys/param.h -mtime -0s ; echo
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