The README file in /usr/share/doc/libpng-1.2.14 mentions LICENSE file: LICENSE => License to use and redistribute libpng But this file is missing in the system. None of the ebuilds seem to install this file. Below please find included a patch that fixed it for me, for the version that is currently most up-to-date and marked stable in x86 platform (for the other versions, the patch should be almost verbatim): --- /usr/portage/media-libs/libpng/libpng-1.2.14.ebuild 2007-01-03 13:05:59.000000000 +0800 +++ /root/portage/local-overlay/media-libs/libpng/libpng-1.2.14.ebuild 2007-01-03 16:51:17.000000000 +0800 @@ -39,7 +39,7 @@ src_install() { make DESTDIR="${D}" install || die - dodoc ANNOUNCE CHANGES KNOWNBUG README TODO Y2KINFO + dodoc ANNOUNCE CHANGES KNOWNBUG README TODO Y2KINFO LICENSE use doc && dodoc libpng-manual.txt }
/usr/portage/licenses/as-is; we won't be duplicating this stuff across tons of places.