[Bug libstdc++/115482] [14/15 Regression] print.cc fails with avrlibc

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115482

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:5fad8874300ef67c577cc204e339dca6bca15467

commit r14-10502-g5fad8874300ef67c577cc204e339dca6bca15467
Author: Detlef Vollmann <dv@vollmann.ch>
Date:   Tue Jul 23 09:25:22 2024 +0100

    libstdc++: Do not use isatty on avr [PR115482]

    avrlibc has an incomplete unistd.h that doesn't have isatty.
    So building libstdc++ fails when compiling c++23/print.cc.
    As a workaround I added a check for AVR.

    libstdc++-v3/ChangeLog:

            PR libstdc++/115482
            * src/c++23/print.cc (__open_terminal) [__AVR__]: Do not use
            isatty.

    (cherry picked from commit 8439405e38c56b774cf3c65bdafae5f9e11d470a)