[Bug libstdc++/104080] [12 Regression] newlib doesn't have endian.h causing build failure with 2800bc08e4ab r12-6646

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104080

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>:

https://gcc.gnu.org/g:8f6b62e0f0c99e421d07bf1847259744db22924b

commit r12-6665-g8f6b62e0f0c99e421d07bf1847259744db22924b
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Tue Jan 18 10:01:23 2022 +0000

    libstdc++: Use GCC's predefined macro for endianness [PR104080]

    Instead of hardcoded preprocessor conditionals with explicit target
    checks, just rely on the fact that __BYTE_ORDER__ is always defined by
    GCC.

    libstdc++-v3/ChangeLog:

            PR libstdc++/104080
            * src/c++17/fast_float/LOCAL_PATCHES: Update.
            * src/c++17/fast_float/fast_float.h (FASTFLOAT_IS_BIG_ENDIAN):
            Define in terms of __BYTE_ORDER__.