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[Bug libstdc++/81797] gcc 7.1.0 fails to build on macOS 10.13 (High Sierra):
- From: "glisse at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 19 Oct 2017 13:08:46 +0000
- Subject: [Bug libstdc++/81797] gcc 7.1.0 fails to build on macOS 10.13 (High Sierra):
- Auto-submitted: auto-generated
- References: <bug-81797-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
--- Comment #30 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Francois-Xavier Coudert from comment #29)
> The result of "make -d --trace -j8 all-target-libstdc++-v3", in a build
> where x86_64-apple-darwin17.0.0/libstdc++-v3 was entirely removed, can be
> found here:
> https://gist.github.com/fxcoudert/b621465a794d968593bc7ed90c0fc1fb
make's I/O is not exactly a reliable way to debug multithreading issues, but
the output looks right to me.
If --disable-libstdcxx-pch works (does it?), and until someone can investigate
more, I'd be tempted to consider it a mac bug and recommend that option in
https://gcc.gnu.org/install/specific.html .