t/README: start testing porcelainish

diff --git a/xdiff/xdiff.h b/xdiff/xdiff.h
index 2540e8a2ccc6781d23a42c03dadc050a3e233c39..2ce10b4c0d18aca467d3fb7a47badefa8c7c956f 100644 (file)
--- a/xdiff/xdiff.h
+++ b/xdiff/xdiff.h
@@ -29,6 +29,9 @@ extern "C" {
 
 
 #define XDF_NEED_MINIMAL (1 << 1)
+#define XDF_IGNORE_WHITESPACE (1 << 2)
+#define XDF_IGNORE_WHITESPACE_CHANGE (1 << 3)
+#define XDF_WHITESPACE_FLAGS (XDF_IGNORE_WHITESPACE | XDF_IGNORE_WHITESPACE_CHANGE)
 
 #define XDL_PATCH_NORMAL '-'
 #define XDL_PATCH_REVERSE '+'