http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59505
--- Comment #11 from David Kredba <nheghathivhistha at gmail dot com> --- Hello Markus, Thank you for your great support. AS=gcc-as AR=gcc-ar NM=gcc-nm RANLIB=gcc-ranlib did it for me for mesa and I will use it in problematic future cases. And I will try your binutils patch. Do you think that for 4.9.0 GCC release binutils will support slim-LTO-objects? LTO support for general use in Gentoo will not be enabled without it in my opinion. (But maybe if USE/FEATURE lto will be detected they can let ebuild/emerge export AS=gcc-as AR=gcc-ar NM=gcc-nm RANLIB=gcc-ranlib to environment.)