https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81963
--- Comment #3 from rick at snowlight dot net --- Comment on attachment 46243 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46243 32-bit libgcc config.log for *86*-sun-solaris2.10 note that this was part of a multi-stage build starting from GCC 3.4.3, to GCC 4.2, then miscompiling v8.3 (the last Solaris 2.10 version), since Sun Studio 12.6, while being _reasonably_ C++98/03-compiliant using either [RogueWave|Apache]STDCXX v4.2+ or libstdc++ v5.4, is unable to bootstrap this version of GCC, since GCC uses its own extensions to compile itself. Only other compiler that can compile GCC is Apple C++.