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-rw-r--r--libX11/src/SetLocale.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libX11/src/SetLocale.c b/libX11/src/SetLocale.c
index 6741f2a5d..81c946cdf 100644
--- a/libX11/src/SetLocale.c
+++ b/libX11/src/SetLocale.c
@@ -63,6 +63,7 @@ from The Open Group.
#include <X11/Xlocale.h>
#include <X11/Xos.h>
#include "XlcPubI.h"
+#include <unistd.h>
#define MAXLOCALE 64 /* buffer size of locale name */