[v3 PATCH] LWG 2510, make the default constructors of library tag types explicit.

[Jonathan Wakely]

On 12/11/15 15:23 +0100, Gerald Pfeifer wrote:
>On Wed, 11 Nov 2015, Jonathan Wakely wrote:
>>Fixed by this patch.
>
>Thanks, Jonathan!  Unfortunately bootstrap is still broken
>(on i386-unknown-freebsd11.0 at least):

Different issue.

>In file included from 
>/scratch/tmp/gerald/gcc-HEAD/libstdc++-v3/src/c++11/thread.cc:27:0:
>/scratch/tmp/gerald/OBJ-1112-1414/i386-unknown-freebsd10.2/libstdc++-v3/include/
>thread: In function ‘void std::this_thread::sleep_for(const std::chrono::duration<_Rep1, _Period1>&)’:
>/scratch/tmp/gerald/OBJ-1112-1414/i386-unknown-freebsd10.2/libstdc++-v3/include/
>thread:300:44: error: ‘errno’ was not declared in this scope
> while (::nanosleep(&__ts, &__ts) == -1 && errno == EINTR)
>                                           ^
>/scratch/tmp/gerald/OBJ-1112-1414/i386-unknown-freebsd10.2/libstdc++-v3/include/
>thread:300:53: error: ‘EINTR’ was not declared in this scope
> while (::nanosleep(&__ts, &__ts) == -1 && errno == EINTR)

Does adding #include <errno.h> to libstdc++-v3/include/std/thread
solve it?