https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #100 from C. Heide <cameron.heide at betasystems dot com> --- (In reply to The Written Word from comment #99) > (In reply to C. Heide from comment #98) > > (In reply to The Written Word from comment #97) > > > No issues with PCH or libsupc++ like I'm seeing? > > > > No, but the only "working" build I've had so far was with the "#undef > > MAKE_DECL_ONE_ONLY" hack and had the duplicate symbol problem. If I remove > > that hack as recommended, I then get a segfault ICE even earlier than you > > do, where the stage 2 compiler seems completely broken and crashes even on a > > single empty function (haven't been able to do much with that yet). > > What linker patch do you have installed? Looks like it's PHSS_34860, which is probably pretty old (it's also 11.23). In case they're also relevant, it's using binutils 2.32 for the specified assembler, and gcc-4.7.4 as the 'native' compiler, previously built per the advice in PR64919. GMP, MPFR, MPC, and ISL were prebuilt with an even older compiler (gcc-4.1.1) since some of the self-tests crashed when built with 4.7.4. The patch set is pretty similar to yours, though a bit cruder (I just #if 0 out the nftw call) and I just have a minor one from PR67022 that you didn't, to make DWARF2 the default.
