commit 274cea35c6d409cfb16862ff24e789b2d3ea3ee3
author Bram Moolenaar <Bram@vim.org> Wed Sep 12 18:00:12 2018 +0200
committer Bram Moolenaar <Bram@vim.org> Wed Sep 12 18:00:12 2018 +0200
tree 10455d79ab477a8c61a51a6116b0f0077aba2806
parent 67f8ab829911c7901c534ef2bf19cc34b622936f

patch 8.1.0370: not using internal diff if 'diffopt' is not changed

Problem:    Not using internal diff if 'diffopt' is not changed.
Solution:   Correct initialization of diff_flags. (Christian Brabandt)

src/diff.c

diff --git a/src/diff.c b/src/diff.c
index 4c0792b..0055cba 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -31,7 +31,7 @@
 #define DIFF_VERTICAL	16	// vertical splits
 #define DIFF_HIDDEN_OFF	32	// diffoff when hidden
 #define DIFF_INTERNAL	64	// use internal xdiff algorithm
-static int	diff_flags = DIFF_FILLER;
+static int	diff_flags = DIFF_INTERNAL | DIFF_FILLER;
 
 static long diff_algorithm = 0;