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-rw-r--r--builtin-merge.c2
-rw-r--r--cache.h3
2 files changed, 4 insertions, 1 deletions
diff --git a/builtin-merge.c b/builtin-merge.c
index 3aaec7bed7..c043066845 100644
--- a/builtin-merge.c
+++ b/builtin-merge.c
@@ -667,7 +667,7 @@ static int count_unmerged_entries(void)
return ret;
}
-static int checkout_fast_forward(unsigned char *head, unsigned char *remote)
+int checkout_fast_forward(const unsigned char *head, const unsigned char *remote)
{
struct tree *trees[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
diff --git a/cache.h b/cache.h
index d454b7e686..3cce9077cc 100644
--- a/cache.h
+++ b/cache.h
@@ -1040,4 +1040,7 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix);
char *alias_lookup(const char *alias);
int split_cmdline(char *cmdline, const char ***argv);
+/* builtin/merge.c */
+int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
+
#endif /* CACHE_H */