[Bug ld/26766] Support standalone PGO build

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=26766

--- Comment #24 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=44124a46839b3563e448edfd013c6faa6a8b1642

commit 44124a46839b3563e448edfd013c6faa6a8b1642
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jan 11 16:37:03 2021 -0800

    binuitils: Check if AR is usable for LTO build

    Check if AR is usable for LTO build with --enable-pgo-build=lto:

    checking for -plugin option... ar: no operation specified
    Failed: ar --plugin
/usr/gcc-11.0.0-x32/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/liblto_plugin.so rc
    no
    configure: error: AR with --plugin and rc is required for LTO build

    instead of build failure later.

            PR binutils/26766
            * configure.ac:
            * configure: Regenerated.

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