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-rw-r--r--diff-lib.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/diff-lib.c b/diff-lib.c
index 83d0cb8f8..b6f4b2163 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -424,7 +424,8 @@ static void do_oneway_diff(struct unpack_trees_options *o,
* the fairly complex unpack_trees() semantic requirements, including
* the skipping, the path matching, the type conflict cases etc.
*/
-static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o)
+static int oneway_diff(const struct cache_entry * const *src,
+ struct unpack_trees_options *o)
{
const struct cache_entry *idx = src[0];
const struct cache_entry *tree = src[1];