[Bug libstdc++/103381] [9/10/11 Regression] --enable-libstdcxx-allocator=bitmap doesn't build

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103381

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:0a7a68872b425afb015d499c879e709fdd32616b

commit r10-10290-g0a7a68872b425afb015d499c879e709fdd32616b
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Tue Nov 23 12:28:22 2021 +0000

    libstdc++: Fix circular dependency for bitmap_allocator [PR103381]

    <ext/bitmap_allocator.h> includes <function>, and since C++17 that
    includes <unordered_map>. If std::allocator is defined in terms of
    __gnu_cxx::bitmap_allocator then you get a circular reference and
    bootstrap fails when compiling src/c++17/*.cc.

    libstdc++-v3/ChangeLog:

            PR libstdc++/103381
            * include/ext/bitmap_allocator.h: Include <bits/stl_function.h>
            instead of <functional>.

    (cherry picked from commit 5459fa132a99e6037e5ccf1b49d617677a584ff8)