[Mesa-dev] Xlib GL needs -ltalloc

[Kevin H. Hobbs]

When Mesa is built with :

./autogen.sh \
  --prefix=/home/kevin/mesa_xlib/ \
  --with-driver=xlib \
  --disable-gallium \
  --disable-gl-osmesa

The libGL.so that is produced has undefined symbols from talloc but
talloc is not linked.

$ nm mesa_xlib/lib/libGL.so | grep talloc
00000000001ac4a0 T _ZN9glsl_type20init_talloc_type_ctxEv
00000000002db680 r
_ZZN9glsl_type20init_talloc_type_ctxEvE19__PRETTY_FUNCTION__
                 U _talloc_array
                 U _talloc_free
                 U _talloc_reference_loc
                 U _talloc_set_destructor
                 U _talloc_steal_loc
                 U _talloc_zero
                 U _talloc_zero_array
                 U talloc_asprintf
                 U talloc_asprintf_append
                 U talloc_init
                 U talloc_named_const
                 U talloc_parent
                 U talloc_strdup
                 U talloc_strdup_append
                 U talloc_strndup
                 U talloc_strndup_append
                 U talloc_unlink
                 U talloc_vasprintf_append

$ ldd mesa_xlib/lib/libGL.so
        linux-vdso.so.1 =>  (0x00007fffbc5ff000)
        libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007f2c94fb1000)
        libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007f2c94d9e000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f2c94b1a000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f2c948fe000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f2c946e7000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f2c9436e000)
        libxcb.so.1 => /usr/lib64/libxcb.so.1 (0x00007f2c94153000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f2c93f4e000)
        /lib64/ld-linux-x86-64.so.2 (0x0000003184e00000)
        libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007f2c93d4b000)

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