gitweb: Use @diff_opts, default ('M'), as git-diff and git-diff-tree paramete

diff --git a/cache.h b/cache.h
index e00505a343a2260055f5177bdfd7740e2d5a5e33..1f212d77a4e41009c88c4b599022295b8a12a609 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -123,7 +123,7 @@ extern int cache_errno;
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
 
-extern char *get_git_dir(void);
+extern const char *get_git_dir(void);
 extern char *get_object_directory(void);
 extern char *get_refs_directory(void);
 extern char *get_index_file(void);