Index: src/ci_string.h
--- src/ci_string.h.orig
+++ src/ci_string.h
@@ -6,7 +6,7 @@
 #ifndef __CI_STRING_H__
 #define __CI_STRING_H__
 
-#include <string>
+#include <string.h>
 #include <ctype.h>
 
 struct ci_char_traits : public std::char_traits<char>