Today I updated my system and saw that firefox (and thunderbird) both were linked to the updated libvpx. So I ran emerge @preserved-rebuild and got the following error message: checking for libvpx version >= v0.9.7... no configure: error: --with-system-libvpx requested but it is not v0.9.7 or later *** Fix above errors and then restart with "make -f client.mk build" The currently installed version of libvpx is now 1.0.0 which should of course satisfy this dependancy. So it seems that either the libvpx is reporting its version incorrectly or mozilla's ./configure is broken. Reproducible: Always
*** This bug has been marked as a duplicate of bug 401985 ***