[Mesa-dev] [Bug 80848] [dri3] Building mesa fails with dri3 enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80848

--- Comment #20 from Emil Velikov <emil.l.velikov at gmail.com> ---
(In reply to comment #19)
> (In reply to comment #18)
> > I had cross-compilation problems on Ubuntu (building 32bit Mesa on 64bit
> > environment) and my problems went away by reverting
> > 
> > 3ecd9e1a93817180fa5b280e5fe11c903cca38ba
> > 
> > For some reason otherwise a wrong version (64bit one) of libexpat got
> > included to linking. Patch adds $(EXPAT_LIBS) when linking libloader so that
> > is why I tried the revert. I'll try to see why this happens.
> 
> whoopsie forgot to paste my build command line:
> 
> INTEL_CFLAGS='-I/opt/include -I/opt/include/libdrm' INTEL_LIBS='-L/opt/lib
> -ldrm_intel' CFLAGS='-m32' CXXFLAGS='-m32' ./autogen.sh --prefix=/opt
> --enable-gles2 --without-gallium-drivers --enable-32-bit
> --with-dri-drivers=i965 --with-egl-platforms=x11 --disable-osmesa
> --disable-vdpau --disable-dri3 --enable-debug --enable-glx-tls
> --enable-texture-float

I find something a bit disturbing here - why would you set INTEL_{CFLAGS,LIBS}
rather than relying on pkg-config ?

Your native arch is x86-64 thus the lack of PKG_CONFIG_PATH is the one causing
you problems - pkgconfig looks for the variable (none set) then goes into the
default dir which has a .pc file pointing to a 64bit library.

Or to put things in a different light - please can we avoid shooting mesa in
the back by providing any other flags but PKG_CONFIG_PATH, CFLAGS and CXXFLAGS.
Thank you

P.S. Things should just work even without C{XX,}FLAGS='-m32' unless we have a
bug somewhere :)

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