Build issue with Apple Clang 15/macOS Sonoma

[adamjstewart]

I'm trying to build GCC 13.2.0 with https://raw.githubusercontent.com/Homebrew/formula-patches/3c5cbc8e9cf444a1967786af48e430588e1eb481/gcc/gcc-13.2.0.diff, which is allegedly based off of this repo. However, I hit the following build error:

1  0x100afffac  ld::AtomPlacement::findAtom(unsigned char, unsigned long long, ld::AtomPlacement::AtomLoc const*&, long long&) const + 1204
2  0x100b15924  ld::InputFiles::SliceParser::parseObjectFile(mach_o::Header const*) const + 15164
3  0x100b22e30  ld::InputFiles::parseAllFiles(void (ld::AtomFile const*) block_pointer)::$_7::operator()(unsigned long, ld::FileInfo const&) const + 420
4  0x18b159950  _dispatch_client_callout2 + 20
5  0x18b16cba0  _dispatch_apply_invoke + 176
6  0x18b159910  _dispatch_client_callout + 20
7  0x18b16b3cc  _dispatch_root_queue_drain + 864
8  0x18b16ba04  _dispatch_worker_thread2 + 156
9  0x18b3030d8  _pthread_wqthread + 228
ld: Assertion failed: (resultIndex < sectData.atoms.size()), function findAtom, file Relocations.cpp, line 1336.
collect2: error: ld returned 1 exit status
make[5]: *** [Makefile:762: libstdc++.la] Error 1
make[5]: Leaving directory '/private/var/folders/jv/cgkfvslj6nq1l7cw0c8c_8gm0000gn/T/Adam/spack-stage/spack-stage-gcc-13.2.0-cif4pnk3frkkk7ycwb2xfeui2iosa5ad/spack-src/spack-build/aarch64-apple-darwin23.0.0/libstdc++-v3/src'
make[4]: *** [Makefile:795: all-recursive] Error 1
make[4]: Leaving directory '/private/var/folders/jv/cgkfvslj6nq1l7cw0c8c_8gm0000gn/T/Adam/spack-stage/spack-stage-gcc-13.2.0-cif4pnk3frkkk7ycwb2xfeui2iosa5ad/spack-src/spack-build/aarch64-apple-darwin23.0.0/libstdc++-v3/src'
make[3]: *** [Makefile:576: all-recursive] Error 1
make[3]: Leaving directory '/private/var/folders/jv/cgkfvslj6nq1l7cw0c8c_8gm0000gn/T/Adam/spack-stage/spack-stage-gcc-13.2.0-cif4pnk3frkkk7ycwb2xfeui2iosa5ad/spack-src/spack-build/aarch64-apple-darwin23.0.0/libstdc++-v3'
make[2]: *** [Makefile:501: all] Error 2
make[2]: Leaving directory '/private/var/folders/jv/cgkfvslj6nq1l7cw0c8c_8gm0000gn/T/Adam/spack-stage/spack-stage-gcc-13.2.0-cif4pnk3frkkk7ycwb2xfeui2iosa5ad/spack-src/spack-build/aarch64-apple-darwin23.0.0/libstdc++-v3'
make[1]: *** [Makefile:11955: all-target-libstdc++-v3] Error 2
make[1]: *** Waiting for unfinished jobs....

Full build log: spack-build-out.txt

[iains]

this is a duplicate of:
iains/gcc-darwin-arm64#117
and
iains/gcc-12-branch#22

The same work-around would apply.