Created attachment 288643 [details] emerge --info thunderbird mail-client/thunderbird-7.0.1* fails to emerge without setting USE=alsa. [...] release/mozilla/media/libvorbis/lib/vorbis_codebook.c:276: undefined reference to `oggpack_write' /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: libxul.so: hidden symbol `oggpack_writetrunc' isn't defined /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: final link failed: Bad value collect2: ld returned 1 exit status make[4]: *** [libxul.so] Error 1 [...] In case you are wondering about my use flags: it fails with and without custom-optimization the same way.
Created attachment 288645 [details] build.log
Created attachment 289373 [details] emerge --info thunderbird
Created attachment 289379 [details] build.log.bz2
Thunderbird 8.0 emerges and runs without the alsa USE flag set, so I consider this bug fixed.
eclass was changed to support webm on thunderbird as well for those who prefer to use the internal browser of tb as well.