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-rw-r--r--Python/sysmodule.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index b758344..a946b0d 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -48,7 +48,7 @@ Data members:
#include "osdefs.h"
-#if HAVE_UNISTD_H
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif