issue5545: Switch to Autoconf for multiprocessing; special thanks to Martin Lowis for help
diff --git a/Modules/_multiprocessing/multiprocessing.c b/Modules/_multiprocessing/multiprocessing.c
index 48049c7..9008f31 100644
--- a/Modules/_multiprocessing/multiprocessing.c
+++ b/Modules/_multiprocessing/multiprocessing.c
@@ -8,6 +8,12 @@
#include "multiprocessing.h"
+#ifdef SCM_RIGHTS
+ #define HAVE_FD_TRANSFER 1
+#else
+ #define HAVE_FD_TRANSFER 0
+#endif
+
PyObject *create_win32_namespace(void);
PyObject *pickle_dumps, *pickle_loads, *pickle_protocol;
@@ -244,7 +250,7 @@
Py_INCREF(&ConnectionType);
PyModule_AddObject(module, "Connection", (PyObject*)&ConnectionType);
-#if defined(MS_WINDOWS) || HAVE_SEM_OPEN
+#if defined(MS_WINDOWS) || defined(HAVE_SEM_OPEN)
/* Add SemLock type to module */
if (PyType_Ready(&SemLockType) < 0)
return;