diff --git a/mercurial/thirdparty/xdiff/xdiff.h b/mercurial/thirdparty/xdiff/xdiff.h
--- a/mercurial/thirdparty/xdiff/xdiff.h
+++ b/mercurial/thirdparty/xdiff/xdiff.h
@@ -29,6 +29,14 @@ extern "C" {
 
 #include <stddef.h> /* size_t */
 
+#if !defined(_MSC_VER) || _MSC_VER >= 1600
+#include <stdint.h>
+#else
+/* prior to Visual Studio 2010 */
+typedef long long int64_t;
+typedef unsigned long long uint64_t;
+#endif
+
 /* xpparm_t.flags */
 #define XDF_NEED_MINIMAL (1 << 0)
 
diff --git a/mercurial/thirdparty/xdiff/xinclude.h b/mercurial/thirdparty/xdiff/xinclude.h
--- a/mercurial/thirdparty/xdiff/xinclude.h
+++ b/mercurial/thirdparty/xdiff/xinclude.h
@@ -24,13 +24,6 @@
 #define XINCLUDE_H
 
 #include <ctype.h>
-#if !defined(_MSC_VER) || _MSC_VER >= 1600
-#include <stdint.h>
-#else
-/* prior to Visual Studio 2010 */
-typedef long long int64_t;
-typedef unsigned long long uint64_t;
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>