1 files changed, 2 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 03f9faa..43b6a6a 100644
--- a/setup.py
+++ b/setup.py
@@ -1183,7 +1183,8 @@ class PyBuildExt(build_ext):
             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'):