https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #84 from dave.anglin at bell dot net --- On 2019-07-23 12:15 a.m., cameron.heide at betasystems dot com wrote: > If I add the '#undef MAKE_DECL_ONE_ONLY' fix from PR64919 (is it even still > relevant? It does seem to be for the stage 2 libgcc segfault symptom I see.), > I > start getting the duplicate symbols in stage 1 libstdc++. The undef is wrong. One only (weak) support is needed. If HP linker support is broken for .linkonce sections, the default section selection (default_elf_select_section) will need changing to place functions differently.