1 files changed, 7 insertions, 0 deletions
diff --git a/include/getopt.h b/include/getopt.h
index 74ca6d453a..7a35c8a20b 100644
--- a/include/getopt.h
+++ b/include/getopt.h
@@ -1 +1,8 @@
+#ifndef _GETOPT_H
+
 #include <posix/getopt.h>
+
+/* Now define the internal interfaces.  */
+extern void __getopt_clean_environment (char **__env);
+
+#endif