/usr/lib/libgdk-x11-2.0.so: undefined reference to `cairo_xlib_surface_create'
/usr/lib/libgdk-x11-2.0.so: undefined reference to `cairo_xlib_surface_set_size'collect2: ld returned 1 exit status
make[4]: *** [wm-tester] Error 1
make[4]: Leaving directory `/var/tmp/portage/metacity-2.14.5/work/metacity-2.14.5/src/wm-tester'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/var/tmp/portage/metacity-2.14.5/work/metacity-2.14.5/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/var/tmp/portage/metacity-2.14.5/work/metacity-2.14.5/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/metacity-2.14.5/work/metacity-2.14.5'
make: *** [all] Error 2

!!! ERROR: x11-wm/metacity-2.14.5 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  ebuild.sh, line 1248:   Called gnome2_src_compile
  gnome2.eclass, line 64:   Called die

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