Fixed compile error on windows.

diff --git a/Modules/_multiprocessing/multiprocessing.h b/Modules/_multiprocessing/multiprocessing.h
index 2bfad87501784242287070e23fa815d2ac13f017..4f4f9d735e71ac9fff79a26d5d7e285a8e6dc70c 100644 (file)
--- a/Modules/_multiprocessing/multiprocessing.h
+++ b/Modules/_multiprocessing/multiprocessing.h
@@ -16,6 +16,9 @@
 #  include <windows.h>
 #  include <winsock2.h>
 #  include <process.h>              /* getpid() */
+#  ifdef Py_DEBUG
+#    include <crtdbg.h>
+#  endif
 #  define SEM_HANDLE HANDLE
 #  define SEM_VALUE_MAX LONG_MAX
 #else