--- a/mercurial/thirdparty/xdiff/xdiffi.c	Thu Mar 08 22:23:02 2018 +0900
+++ b/mercurial/thirdparty/xdiff/xdiffi.c	Mon Mar 12 21:50:18 2018 -0400
@@ -342,7 +342,7 @@
 	 * One is to store the forward path and one to store the backward path.
 	 */
 	ndiags = xe->xdf1.nreff + xe->xdf2.nreff + 3;
-	if (!(kvd = (int64_t *) xdl_malloc((2 * ndiags + 2) * sizeof(long)))) {
+	if (!(kvd = (int64_t *) xdl_malloc((2 * ndiags + 2) * sizeof(int64_t)))) {
 
 		xdl_free_env(xe);
 		return -1;