* Generating Blender C/C++ API docs ... /var/tmp/portage/media-gfx/blender-2.63a-r1/temp/environment: line 5471: doxygen: command not found /var/tmp/portage/media-gfx/blender-2.63a-r1/temp/environment: line 5472: doxygen: command not found [ebuild N ] media-gfx/blender-2.63a-r1 USE="cycles dds elbeem ffmpeg iconv nls openexr openmp sdl sse -3dmouse -apidoc -collada -debug -doc -fftw -game-engine -jack -jpeg2k -openal -player -redcode -sndfile -tweak-mode" LINGUAS="-ar -bg -ca -cs -de -el -en -es -es_ES -fa -fi -fr -hr -id -it -ja -ky -ne -pl -pt -ru -sr -sr@latin -sv -tr -uk -zh_CN -zh_TW" 0 kB Seems that the ebuild should skip the generation of the docs if -doc is specified, and otherwise depend on it.
This has since been fixed, please sync.