Bug 977833 - Initialize gfxPrefs so that the tests have access to preferences evaluated that way. r=bgirard
Bug 976648 - Toplevel build/config for powerpc64le-linux support. r=bsmedberg
Bug 976648 - JavaScript build/config for powerpc64le-linux support. r=bsmedberg
Bug 976648 - Backport of libffi powerpc64le-linux support. r=bsmedberg
Bug 976648 - xptcall port for powerpc64le-linux support. r=froydnj

--HG--
rename : xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.s => xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc64_linux.S
rename : xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s => xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.S
Bug 976648 - WebRTC endian config for powerpc64le-linux support. r=jesup
Bug 976648 - mfbt endian config for powerpc64le-linux support. r=froydnj