[Bug bootstrap/96612] [11 Regression][submitted patch] Fails to bootstrap with older --build= than --host= compiler due to missing -std=c++11

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96612

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tobias Burnus <bur...@gcc.gnu.org>:

https://gcc.gnu.org/g:7ffcf5d61174dda1f39a623e15f7e5d6b98bbafc

commit r11-2787-g7ffcf5d61174dda1f39a623e15f7e5d6b98bbafc
Author: Tobias Burnus <tob...@codesourcery.com>
Date:   Thu Aug 20 21:59:00 2020 +0200

    configure: Also check C++11 (flags) for ${build} compiler not only for
${host}

    config/ChangeLog:

            PR bootstrap/96612
            * ax_cxx_compile_stdcxx.m4: Add fourth argument to check also
            the CXX_FOR_BUILD compiler.

    ChangeLog:

            PR bootstrap/96612
            * configure.ac: Run AX_CXX_COMPILE_STDCXX also for ${build}
compiler,
            if not the same as ${host}.
            * configure: Regenerate.