Date: Mon, 28 Apr 2014 18:36:34 -0600 From: Warner Losh <imp@bsdimp.com> To: Julian Elischer <julian@FreeBSD.org> Cc: FreeBSD Current <current@freebsd.org> Subject: Re: Make variables to force non default libraries and includes? Message-ID: <80F941B9-3A54-4059-BF99-A5F59A9731DA@gmail.com> In-Reply-To: <535E07C9.5060309@freebsd.org> References: <535E07C9.5060309@freebsd.org>
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On Apr 28, 2014, at 1:48 AM, Julian Elischer <julian@FreeBSD.org> wrote: > I need to do the equivalent of "cd /usr/src/cddl/usr.sbin/dtrace; make DESTDIR=/mumble all install” cd /usr/src make distributeworld DESTDIR=/mumble cd cddl/usr.sbin/dtrace make buildenv make all install > but it pulls in libraries from the base system, which differ slightly 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 libraries", and "make includes" but > I need to be able to do selective builds of just subdirectories after that.. I haven't spotted the right way of forcing the use of the "--system_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 far. You’re asking for some serious split-brain action. chroot builds are likely your best option. There’s no easy way to force this, although you might get some milage out of WMAKEENV options, but I think we bake most of the where to look for things options into the binaries. One crazy option would be to set CC=“cc —sysroot /mumble” but I’m sure there be dragons there… Good luck with this crazy, never have we supported it very well, option :) Warnerhelp
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