optimizations in search and sorting

1 files changed, 5 insertions, 0 deletions

diff --git a/utf8.h b/utf8.h
index 942f98e7..7ec66ef5 100644
--- a/utf8.h
+++ b/utf8.h
@@ -19,6 +19,9 @@
     by Jeff Bezanson
     placed in the public domain Fall 2005
 */
+#ifndef __UTF8_H
+#define __UTF8_H
+
 #include <stdint.h>
 #include <stdarg.h>
 
@@ -97,3 +100,5 @@ int u8_valid (const char  *str,
 
 const char *
 utfcasestr (const char *s1, const char *s2);
+
+#endif