1 files changed, 25 insertions, 1 deletions
diff --git a/include/asterisk/ast_expr.h b/include/asterisk/ast_expr.h
index 3739acb7e..c5981a204 100755
--- a/include/asterisk/ast_expr.h
+++ b/include/asterisk/ast_expr.h
@@ -1 +1,25 @@
-extern char *ast_expr (char *arg);
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Copyright (C) 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2
+ */
+
+#ifndef _ASTERISK_EXPR_H
+#define _ASTERISK_EXPR_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+int ast_expr(char *expr, char *buf, int length);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif /* _ASTERISK_EXPR_H */