This patches are included from libcxx and libcxxabi when
stdenv.hostPlatform.isMusl. After #117433 the patchs to that patch
wasn't adjusted for the new structure, likely because it doesn't come up
during normal eval. This fixes (among other attribute paths):
* pkgsMusl.llvmPackages_12.libcxxabi
* pkgsMusl.llvmPackages_12.libcxx
* pkgsMusl.llvmPackages_11.libcxxabi
* pkgsMusl.llvmPackages_11.libcxx
* pkgsMusl.llvmPackages_10.libcxxabi
* pkgsMusl.llvmPackages_10.libcxx
* pkgsMusl.llvmPackages_9.libcxxabi
* pkgsMusl.llvmPackages_9.libcxx
* pkgsMusl.llvmPackages_8.libcxxabi
* pkgsMusl.llvmPackages_8.libcxx
* pkgsMusl.llvmPackages_7.libcxxabi
* pkgsMusl.llvmPackages_7.libcxx
* pkgsMusl.llvmPackages_6.libcxxabi
* pkgsMusl.llvmPackages_6.libcxx
* pkgsMusl.llvmPackages_5.libcxxabi
* pkgsMusl.llvmPackages_5.libcxx
Only evaluation was tested, not compilation though.
081b9423d4