compat: Add simplified merge sort implementation from glibc

diff --git a/builtin-unpack-objects.c b/builtin-unpack-objects.c
index a6ff62fd8c66f075550e01718acf56d90b44d4bb..1e51865c52231e80cfdbbb19c8b6fa86ee8855d2 100644 (file)
--- a/builtin-unpack-objects.c
+++ b/builtin-unpack-objects.c
@@ -311,7 +311,7 @@ static void unpack_one(unsigned nr)
 static void unpack_all(void)
 {
        int i;
-       struct progress progress;
+       struct progress *progress = NULL;
        struct pack_header *hdr = fill(sizeof(struct pack_header));
        unsigned nr_objects = ntohl(hdr->hdr_entries);
 
@@ -322,15 +322,13 @@ static void unpack_all(void)
        use(sizeof(struct pack_header));
 
        if (!quiet)
-               start_progress(&progress, "Unpacking %u objects...", "", nr_objects);
+               progress = start_progress("Unpacking objects", nr_objects);
        obj_list = xmalloc(nr_objects * sizeof(*obj_list));
        for (i = 0; i < nr_objects; i++) {
                unpack_one(i);
-               if (!quiet)
-                       display_progress(&progress, i + 1);
+               display_progress(progress, i + 1);
        }
-       if (!quiet)
-               stop_progress(&progress);
+       stop_progress(&progress);
 
        if (delta_list)
                die("unresolved deltas left after unpacking");