Mine

 x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../../../../include -I../../../../include -I../../../../include -I../../../../include -I../../../../include -I../../../../include -I../../../../include -I../../../../include -I../../../../hw/xgl/glx -I../../../../hw/xgl -D_BSD_SOURCE -DHAS_FCHOWN -DHAS_STICKY_DIR_BIT -I../../../../include -I../../../../include -I../../../../Xext -I../../../../composite -I../../../../damageext -I../../../../xfixes -I../../../../Xi -I../../../../mi -I../../../../miext/shadow -I../../../../miext/damage -I../../../../render -I../../../../randr -I../../../../fb -march=k8 -O2 -pipe -MT xglxmodule.lo -MD -MP -MF .deps/xglxmodule.Tpo -c xglxmodule.c  -fPIC -DPIC -o .libs/xglxmodule.o
/bin/sh ../../../../libtool --tag=CC --mode=link x86_64-pc-linux-gnu-gcc -I../../../../hw/xgl/glx -I../../../../hw/xgl  -D_BSD_SOURCE -DHAS_FCHOWN -DHAS_STICKY_DIR_BIT   -I../../../../include -I../../../../include -I../../../../Xext -I../../../../composite -I../../../../damageext -I../../../../xfixes -I../../../../Xi -I../../../../mi -I../../../../miext/shadow  -I../../../../miext/damage -I../../../../render -I../../../../randr -I../../../../fb  -march=k8 -O2 -pipe   -o libxglx.la -rpath /usr/lib64/xorg/modules/xgl -avoid-version xglxmodule.lo ../../../../hw/xgl/glx/libxglx.la ../../../../hw/xgl/glxext/libxglglxext.la -lglitz-glx -lGL -lpthread -lglitz -lm -lXrender -lX11 -lXrandr -lxkbfile -lXinerama   -lm
grep: /usr/lib64/opengl/ati/lib/libGL.la: No such file or directory
/bin/sed: can't read /usr/lib64/opengl/ati/lib/libGL.la: No such file or directory
libtool: link: `/usr/lib64/opengl/ati/lib/libGL.la' is not a valid libtool archive
make[4]: *** [libxglx.la] Error 1
make[4]: Leaving directory `/var/tmp/portage/xgl-0.0.1_pre20060714-r1/work/xgl/hw/xgl/glx/module'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/var/tmp/portage/xgl-0.0.1_pre20060714-r1/work/xgl/hw/xgl/glx'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/var/tmp/portage/xgl-0.0.1_pre20060714-r1/work/xgl/hw/xgl'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/xgl-0.0.1_pre20060714-r1/work/xgl/hw'
make: *** [all-recursive] Error 1

!!! ERROR: x11-base/xgl-0.0.1_pre20060714-r1 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  ebuild.sh, line 1248:   Called x-modular_src_compile
  x-modular.eclass, line 330:   Called x-modular_src_make
  x-modular.eclass, line 325:   Called die

!!! emake failed
!!! If you need support, post the topmost build error, and the call stack if relevant.

!!! This ebuild is from an overlay: '/usr/portage/local/layman/portage-xgl'