Index: test/utils.c
--- test/utils.c.orig
+++ test/utils.c
@@ -30,6 +30,8 @@
 #include <string.h>
 #include <check.h>
 
+char *strcasestr(const char *, const char *little);
+
 #include "utils/string.h"
 #include "utils/corestrings.h"