Re: Make variables to force non default libraries and includes?

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 D=
ESTDIR=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 slightly fro=
m those in the source tree.

The above will create the right /mumble hierarchy, and will pull the librar=
ies 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", an=
d "make includes" but
> I need to be able to do selective builds of just subdirectories after tha=
t..  I haven't spotted the right way of forcing the use of the "--system_ro=
ot /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=92re asking for some serious split-brain action. chroot builds are like=
ly your best option. There=92s no easy way to force this, although you migh=
t 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=3D=93cc =97sysroot /mumble=94 but I=92m sure there be dragons =
there=85

Good luck with this crazy, never have we supported it very well, option :)

Warner

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