From f29479dfa2e7ba83de400153b3b36089b234ac1b Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sat, 29 Jul 2017 11:09:00 +0200
Subject: [PATCH] mescc: Tinycc support: memcmp.

* mlibc/libc-mes+tcc.c (memcmp): Implement.
---
 mlibc/libc-mes+tcc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mlibc/libc-mes+tcc.c b/mlibc/libc-mes+tcc.c
index 3c310bfd..691f1c85 100644
--- a/mlibc/libc-mes+tcc.c
+++ b/mlibc/libc-mes+tcc.c
@@ -196,7 +196,10 @@ memset (void *s, int c, size_t n)
 int
 memcmp (void const *s1, void const *s2, size_t n)
 {
-  return 0;
+  char *a = s1;
+  char *b = s2;
+  while (*a == *b && --n) {a++;b++;}
+  return *a - *b;
 }
 
 int