$ ls /usr/share/gcc-data/x86_64-pc-linux-gnu/*/man/man3/_var* /usr/share/gcc-data/x86_64-pc-linux-gnu/4.6.4/man/man3/_var_tmp_portage_sys-devel_gcc-4.6.4_work_gcc-4.6.4_.3.bz2 /usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/man/man3/_var_tmp_portage_sys-devel_gcc-4.7.3-r1_work_gcc-4.7.3_.3.bz2 /usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.1/man/man3/_var_tmp_portage_sys-devel_gcc-4.8.1_work_gcc-4.8.1_.3.bz2 $ qfile -v /usr/share/gcc-data/x86_64-pc-linux-gnu/*/man/man3/_var* sys-devel/gcc-4.8.1 (/usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.1/man/man3/_var_tmp_portage_sys-devel_gcc-4.8.1_work_gcc-4.8.1_.3.bz2) sys-devel/gcc-4.7.3-r1 (/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/man/man3/_var_tmp_portage_sys-devel_gcc-4.7.3-r1_work_gcc-4.7.3_.3.bz2) sys-devel/gcc-4.6.4 (/usr/share/gcc-data/x86_64-pc-linux-gnu/4.6.4/man/man3/_var_tmp_portage_sys-devel_gcc-4.6.4_work_gcc-4.6.4_.3.bz2) $ man /usr/share/gcc-data/x86_64-pc-linux-gnu/4.8.1/man/man3/_var_tmp_portage_sys-devel_gcc-4.8.1_work_gcc-4.8.1_.3.bz2 <Nothing useful> $ I suggest that these files not be installed.
I don't see anything like that here.
(In reply to Ryan Hill from comment #1) Do you have "doc" USE flag enabled for sys-devel/gcc? Do you have app-doc/doxygen installed?
not sure if there's a way to turn Directory Reference's off in doxygen (which is what all of those are). they've slowly updated their "run_doxygen" script to delete more and more of these things. most of them were trimmed via bug 113902, but looks like i missed a few. i've updated the eclass to blindly delete any generated man page with the string 'Directory Reference'. http://sources.gentoo.org/eclass/toolchain.eclass?r1=1.670&r2=1.671