diff -r 74e9496e4986 -r b4356d1cf3e4 mercurial/bitmanipulation.h
--- a/mercurial/bitmanipulation.h	Thu Jun 01 02:41:19 2017 +0530
+++ b/mercurial/bitmanipulation.h	Fri Jun 02 10:32:39 2017 -0700
@@ -1,6 +1,8 @@
 #ifndef _HG_BITMANIPULATION_H_
 #define _HG_BITMANIPULATION_H_
 
+#include <string.h>
+
 #include "compat.h"
 
 static inline uint32_t getbe32(const char *c)