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-rw-r--r--libXext/include/X11/extensions/extutil.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libXext/include/X11/extensions/extutil.h b/libXext/include/X11/extensions/extutil.h
index b22843068..074cc183a 100644
--- a/libXext/include/X11/extensions/extutil.h
+++ b/libXext/include/X11/extensions/extutil.h
@@ -34,6 +34,7 @@ in this Software without prior written authorization from The Open Group.
#ifndef _EXTUTIL_H_
#define _EXTUTIL_H_
+#include <unistd.h>
#include <X11/extensions/Xext.h>
/*