libX11-1.3.2 installs: /usr/share/doc/libX11: Framework.html libX11.html LocaleDB.html Trans.html xim.html Framework.pdf libX11.pdf LocaleDB.pdf Trans.pdf xim.pdf Framework.txt libX11.txt LocaleDB.txt Trans.txt xim.txt /usr/share/doc/libX11-1.3.2: ChangeLog.bz2 adding --docdir=/usr/share/doc/${PF} to CONFIGURE_OPTIONS fixed this for me
Fixed in main tree by eclass update. Feel free to recompile the package if it is really itching you, otherwise with next bump it will get automaticaly fixed.