Merged revisions 76432,76558 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76432 | mark.dickinson | 2009-11-20 19:30:22 +0000 (Fri, 20 Nov 2009) | 5 lines

  Issue #7272:  Add configure test to detect whether sem_open works
  properly, and use this to skip test_multiprocessing on platforms
  where sem_open raises a signal.  This should fix some FreeBSD buildbot
  failures for test_multiprocessing.
........
  r76558 | mark.dickinson | 2009-11-28 10:44:20 +0000 (Sat, 28 Nov 2009) | 4 lines

  Issue #7272, continued:  don't re-use existing HAVE_BROKEN_POSIX_SEMAPHORES
  to indicate that semaphores aren't available;  define a new variable
  POSIX_SEMAPHORES_NOT_ENABLED instead.
........
diff --git a/setup.py b/setup.py
index 03f9faa..43b6a6a 100644
--- a/setup.py
+++ b/setup.py
@@ -1183,7 +1183,8 @@
             multiprocessing_srcs = [ '_multiprocessing/multiprocessing.c',
                                      '_multiprocessing/socket_connection.c'
                                    ]
-            if sysconfig.get_config_var('HAVE_SEM_OPEN'):
+            if (sysconfig.get_config_var('HAVE_SEM_OPEN') and not
+                sysconfig.get_config_var('POSIX_SEMAPHORES_NOT_ENABLED')):
                 multiprocessing_srcs.append('_multiprocessing/semaphore.c')
 
         if sysconfig.get_config_var('WITH_THREAD'):