The following happens when attemping an emerge xemacs on ppc -
--checking for XGetFontProperty in -lX11 using extra libs -b i486-linuxaout...
--configure: error: Unable to find X11 libraries.
--!!! ERROR: The ebuild did not complete successfully.
--!!! Function src_compile, Line 45, Exitcode 1
--!!! (no error message)
--!!! emerge aborting on
looks like it is trying to configure for x86 boxen