Date: Tue, 29 Apr 2014 07:04:11 -0600 From: Ian Lepore <ian@FreeBSD.org> To: Julian Elischer <julian@FreeBSD.org> Cc: FreeBSD Current <current@FreeBSD.org>, Warner Losh <imp@bsdimp.com> Subject: Re: Make variables to force non default libraries and includes? Message-ID: <1398776651.22079.4.camel@revolution.hippie.lan> In-Reply-To: <535F3938.9060809@freebsd.org> References: <535E07C9.5060309@freebsd.org> <80F941B9-3A54-4059-BF99-A5F59A9731DA@gmail.com> <1398733072.61646.251.camel@revolution.hippie.lan> <535F3938.9060809@freebsd.org>
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On Tue, 2014-04-29 at 13:31 +0800, Julian Elischer wrote: > On 4/29/14, 8:57 AM, Ian Lepore wrote: > > On Mon, 2014-04-28 at 18:36 -0600, Warner Losh wrote: > >> On Apr 28, 2014, at 1:48 AM, Julian Elischer <julian@FreeBSD.org> wr= ote: > >> > >>> I need to do the equivalent of "cd /usr/src/cddl/usr.sbin/dtrace; = make DESTDIR=3D/mumble all install=94 > >> cd /usr/src > >> make distributeworld DESTDIR=3D/mumble > >> cd cddl/usr.sbin/dtrace > >> make buildenv > >> make all install > >> > >>> but it pulls in libraries from the base system, which differ slight= ly from those in the source tree. > >> The above will create the right /mumble hierarchy, and will pull the= libraries from the build rather than the local system. > >> > >>> How can I force it to use /mumble2/include and /mumble2/lib instead= of / ? > >>> > >>> I can pre-populate /mumble2 using "make buildworld", "make librarie= s", and "make includes" but > >>> I need to be able to do selective builds of just subdirectories aft= er that.. I haven't spotted the right way of forcing the use of the "--s= ystem_root /mumble2" option in the compiles. > >>> > >>> I know we do it in 'buildworld' is there a more generic way? > >>> > >>> I have been looking in the .mk files but I haven't spotted it so fa= r. > >> You=92re asking for some serious split-brain action. chroot builds a= re likely your best option. There=92s no easy way to force this, although= you might get some milage out of WMAKEENV options, but I think we bake m= ost of the where to look for things options into the binaries. One crazy = option would be to set CC=3D=93cc =97sysroot /mumble=94 but I=92m sure th= ere be dragons there=85 > >> > >> Good luck with this crazy, never have we supported it very well, opt= ion :) > >> > >> Warner > > Actually the hooks are in place to do this stuff. Instead of make > > buildenv to get an interactive shell you can do something like > > > > BLDENV=3D`${MAKE} buildenvvars` > > chroot buildchroot/ "env -i $${BLDENV} cd /usr/src/somewhere && \ > > make all install" > > > > -- Ian > > > > > > > > > Is there a way to specify a different toolchain destination? i.e. not=20 > /usr/obj/usr/src/tmp ? >=20 Not right now -- all that stuff is in Makefile.inc1 (WORLDTMP var and related stuff) and there are no provisions for overriding it. -- Ian
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