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Subject: [Bug bootstrap/103306] [12 Regression] parallel build hangs since
 r12-5234-g04c5a9 when /usr/include includes broken symbolic links
Date: Tue, 23 Nov 2021 19:20:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103306

--- Comment #18 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Xi Ruoyao <xry111@gcc.gnu.org>:

https://gcc.gnu.org/g:3363022ed810a2797c47867890547c8f73163257

commit r12-5477-g3363022ed810a2797c47867890547c8f73163257
Author: Xi Ruoyao <xry111@mengyan1223.wang>
Date:   Thu Nov 18 18:46:12 2021 +0800

    fixincludes: don't abort() on access failure [PR103306]

    Some distro may ship dangling symlinks in include directories, triggers
    the access failure.  Skip it and continue to next header instead of
    being to panic.

    Restore to old behavior before r12-5234 but without resurrecting the
    problematic getcwd() call, by using the environment variable "INPUT"
    exported by fixinc.sh.

    Tested on x86_64-linux-gnu, with a dangling symlink intentionally
    injected into /usr/include.

    fixincludes/

            PR bootstrap/103306
            * fixincl.c (process): Don't call abort().=