[Bug lto/118238] [15 Regression] gcc/lto-wrapper.cc uses link which is not recommend and does not exist on mingw

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118238

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Michal Jires <mji...@gcc.gnu.org>:

https://gcc.gnu.org/g:ed1233115c9c60b0174fa99913ba6bd61e81edd7

commit r15-6904-ged1233115c9c60b0174fa99913ba6bd61e81edd7
Author: Michal Jires <mji...@suse.cz>
Date:   Mon Jan 13 04:08:03 2025 +0100

    lto: Remove link() to fix build with MinGW [PR118238]

    I used link() to create cheap copies of Incremental LTO cache contents
    to prevent their deletion once linking is finished.
    This is unnecessary, since output_files are deleted in our lto-plugin
    and not in the linker itself.

    Bootstrapped/regtested on x86_64-linux.
    lto-wrapper now again builds on MinGW. Though so far I have not setup
    MinGW to be able to do full bootstrap.
    Ok for trunk?

            PR lto/118238

    gcc/ChangeLog:

            * lto-wrapper.cc (run_gcc): Remove link() copying.

    lto-plugin/ChangeLog:

            * lto-plugin.c (cleanup_handler):
            Keep output_files when using Incremental LTO.
            (onload): Detect Incremental LTO.