Re: Fix GCC_LINUX_FUTEX to work with C99 compilers

[Jonathan Wakely]

On 06/09/19 10:57 +0200, Florian Weimer wrote:

Without this change, libstdc++ is built without futex symbols if GCC
rejects implicit function declarations in default mode.

Thanks,
Florian

config/ChangeLog:

2019-09-06  Florian Weimer  <fwei...@redhat.com>

        * futex.m4 (GCC_LINUX_FUTEX): Include <unistd.h> for the syscall
        function.

libgomp/ChangeLog, libitm/ChangeLog, libstdc++-v3/ChangeLog:

2019-09-06  Florian Weimer  <fwei...@redhat.com>

        * configure: Regenerate.

I can't approve the top-level part but it's OK from the libstdc++ side
(for release branches too if desired).