t4203: do not let "git shortlog" DWIM based on tty

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 214d7ef2b12d41e8d70539fe4a4b16fde71a780a..d5a8db1bb6c14b02db9f7f534fcbaf4dc46994ba 100644 (file)
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -30,7 +30,7 @@ static const char pack_usage[] =
   "        [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset]\n"
   "        [--threads=N] [--non-empty] [--revs [--unpacked | --all]*]\n"
   "        [--reflog] [--stdout | base-name] [--include-tag]\n"
-  "        [--keep-unreachable | --unpack-unreachable \n"
+  "        [--keep-unreachable | --unpack-unreachable]\n"
   "        [<ref-list | <object-list]";
 
 struct object_entry {
@@ -431,7 +431,7 @@ static int write_one(struct sha1file *f,
        written_list[nr_written++] = &e->idx;
 
        /* make sure off_t is sufficiently large not to wrap */
-       if (*offset > *offset + size)
+       if (signed_add_overflows(*offset, size))
                die("pack too large for current definition of off_t");
        *offset += size;
        return 1;
@@ -1529,6 +1529,8 @@ static void try_to_free_from_threads(size_t size)
        read_unlock();
 }
 
+try_to_free_t old_try_to_free_routine;
+
 /*
  * The main thread waits on the condition that (at least) one of the workers
  * has stopped working (which is indicated in the .working member of
@@ -1563,12 +1565,12 @@ static void init_threaded_search(void)
        pthread_mutex_init(&cache_mutex, NULL);
        pthread_mutex_init(&progress_mutex, NULL);
        pthread_cond_init(&progress_cond, NULL);
-       set_try_to_free_routine(try_to_free_from_threads);
+       old_try_to_free_routine = set_try_to_free_routine(try_to_free_from_threads);
 }
 
 static void cleanup_threaded_search(void)
 {
-       set_try_to_free_routine(NULL);
+       set_try_to_free_routine(old_try_to_free_routine);
        pthread_cond_destroy(&progress_cond);
        pthread_mutex_destroy(&read_mutex);
        pthread_mutex_destroy(&cache_mutex);