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From: "lh_mouse at 126 dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libfortran/105764] New: libgfortran fails to build with a
 custom thread model
Date: Sun, 29 May 2022 03:33:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105764

            Bug ID: 105764
           Summary: libgfortran fails to build with a custom thread model
           Product: gcc
           Version: 12.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lh_mouse at 126 dot com
  Target Milestone: ---

Created attachment 53049
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53049&action=3Dedit
proposed patch

Bootstrapping GCC with fortran enabled and a custom thread model can fail:

```
In file included from ../../../gcc/libgfortran/runtime/error.c:28:
../../../gcc/libgfortran/io/async.h:354:3: error: unknown type name 'pthrea=
d_t'
  354 |   pthread_t thread;
      |   ^~~~~~~~~
```


In commit a79878585a1c5e32bafbc6d1e73f91fd6e4293bf, `pthread_mutex_t` was
replaced with `__gthread_mutex_t`, but `pthread_t` was left over. Not sure
whether this was by design, or was an oversight.

Patch also sent to gcc-patches:
https://gcc.gnu.org/pipermail/gcc-patches/2022-May/595754.html=