Created attachment 398554 [details] firefox.build.log.gz The failure message is: js/src> configure: error: The ARM simulator only works on x86.
You're joking. :facepalm: Apologies, I was misinformed by upstream. I'm stripping that configure option out now.
+ 10 Mar 2015; Ian Stakenvicius (_AxS_) <axs@gentoo.org> firefox-36.0.1.ebuild: + Stripped 'simulator' configure flags for arm and mips platforms as they do not + simulate jit, but rather simulate arm and mips on x86 to allow jit to be + tested; bug 542754