On 22 March 2017 at 02:20, P Levine <plevine...@gmail.com> wrote: > A while back I decided to try my hand at including " -flto" in my > C{XX}FLAGS and do `emerge -e @world`. Needless to say, by the end of it my > "/etc/portage/package.env" was filled with a list of packages that had to > disable the flag either because it failed to build or broke other builds. > I never reported them as bugs because I always assumed the flag was unsafe > and unsupported by Gentoo. > > Lately, I have been trying to fix some GCC-6 related bugs and have come > across some bug reports that seem possibly more "-flto" related than GCC-6 > related. Doing a search for "-flto", Gentoo bugtracker, a number of open > bugreports clearly show them to be "-flto" bugs in their titles. > > Does Gentoo support the "-flto" flag and are "-flto" related bugreports > valid? >
See this Gentoo forum thread on the subject that I've read/followed with interest ... https://forums.gentoo.org/viewtopic-t-1052716.html I haven't tried any LTO building since gcc 4.9.x - it was a bit of pain in the bum as I recall :-) Bob