http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54847
--- Comment #34 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-08 16:03:10 UTC --- (In reply to comment #32) > Would something simple like... > > Index: acinclude.m4 > =================================================================== > --- acinclude.m4 (revision 192212) > +++ acinclude.m4 (working copy) > @@ -1236,7 +1236,7 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME] > [#include <unistd.h> > #include <time.h> > ], > - [#if _POSIX_TIMERS > 0 > + [#if (_POSIX_TIMERS > 0 || defined(__APPLE__)) > timespec tp; > #endif > clock_gettime(CLOCK_REALTIME, &tp); > > be acceptable? We have the options of __APPLE_CC__, __APPLE__ or __MACH__ from > the preprocessor defines emitted by FSF gcc trunk on darwin. You might as well just #define _GLIBCXX_USE_NANOSLEEP in config/os/bsd/darwin/os_defines.h
