Date: Sat, 03 Jul 2004 06:31:01 -0500 (CDT) From: "Conrad J. Sabatier" <conrads@cox.net> To: Geert Hendrickx <geert.hendrickx@ua.ac.be> Cc: freebsd-questions@freebsd.org Subject: Re: make buildworld: build changes only? Message-ID: <XFMail.20040703063101.conrads@cox.net> In-Reply-To: <20040703091936.GA1871@lori.mine.nu>
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On 03-Jul-2004 Geert Hendrickx wrote:
>> make -DNOCLEAN buildworld
>>
>> See /usr/src/Makefile.inc1 for all the various switches that are
>> available. You may want to set some of them permanently in
>> /etc/make.conf.
>>
>> Just do be aware that doing this can lead to trouble sometimes.
>
> Ok, I think this is what I was looking for. But what's the
> difference
> between these: ?
>
># -DNOCLEANDIR run ${MAKE} clean, instead of ${MAKE} cleandir
># -DNOCLEAN do not clean at all
Well, as the comment says, -DNOCLEAN does no cleaning at all before
starting the build.
The comments in /usr/share/mk/bsd.obj.mk (which is indirectly called
from Makefile.inc1):
# clean:
# remove ${CLEANFILES}; remove ${CLEANDIRS} and all contents.
#
# cleandir:
# remove the build directory (and all its contents) created by obj
#
# obj:
# create build directory.
#
So "make clean" first cleans any object files out of the object
directories and then removes them (why, I don't know).
"make cleandir" simply blasts away the entire object directory.
--
Conrad J. Sabatier <conrads@cox.net> -- "In Unix veritas"
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