1 files changed, 4 insertions, 0 deletions
diff --git a/mailinfo.c b/mailinfo.c
index df470bb9c2..cb853df993 100644
--- a/mailinfo.c
+++ b/mailinfo.c
@@ -9,6 +9,10 @@
 #include <ctype.h>
 #include <iconv.h>
 
+#ifdef NO_STRCASESTR
+extern char *gitstrcasestr(const char *haystack, const char *needle);
+#endif
+
 static FILE *cmitmsg, *patchfile;
 
 static int keep_subject = 0;