patch 8.0.0109
Problem:    Still checking if memcmp() exists while every system should have
            it now.
Solution:   Remove vim_memcmp().  (James McCoy, closes #1295)
diff --git a/src/search.c b/src/search.c
index cedcad9..36410e5 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1695,7 +1695,8 @@
 		}
 		else
 		{
-		    if (vim_memcmp(p + col, lastc_bytes, lastc_bytelen) == 0 && stop)
+		    if (memcmp(p + col, lastc_bytes, lastc_bytelen) == 0
+								       && stop)
 			break;
 		}
 		stop = TRUE;