[Bug c++/116524] FAIL: g++.dg/modules/permissive-error-1.C -std=c++17 (internal compiler error: Segmentation fault)

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116524

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by John David Anglin <dang...@gcc.gnu.org>:

https://gcc.gnu.org/g:9d450dee7112635a541c5a34268d54f63da48f71

commit r15-7233-g9d450dee7112635a541c5a34268d54f63da48f71
Author: John David Anglin <dang...@gcc.gnu.org>
Date:   Mon Jan 27 12:39:00 2025 -0500

    c++: Use mapped reads and writes when munmap and msync are available

    Module support is broken when MAPPED_READING and MAPPED_WRITING
    are defined to 0.  This causes internal compiler errors in the
    permissive-error-1.C and permissive-error-2.C tests.

    HP-UX 11.11 doesn't define _POSIX_MAPPED_FILES but it does have
    munmap and msync.  Testing indicates support is sufficient for
    c++ modules, so use checks for these functions instead of
    _POSIX_MAPPED_FILES check.

    2025-01-27  John David Anglin  <dang...@gcc.gnu.org>

    gcc/ChangeLog:

            PR c++/116524
            * configure.ac: Check for munmap and msync.
            * configure: Regenerate.
            * config.in: Regenerate.

    gcc/cp/ChangeLog:
            * module.cc: Test HAVE_MUNMAP and HAVE_MSYNC instead of
            _POSIX_MAPPED_FILES > 0.