builtin_diff(): read $GIT_DIFF_OPTS closer to use

diff --git a/pack-objects.c b/pack-objects.c
index 6ef87e5683aacdf738c86679712078988c0899fd..f73f609884ca0d9fdf3d4109b245981c4c073fcb 100644 (file)
--- a/pack-objects.c
+++ b/pack-objects.c
@@ -148,6 +148,9 @@ void prepare_packing_data(struct packing_data *pdata)
                                             1U << OE_SIZE_BITS);
        pdata->oe_delta_size_limit = git_env_ulong("GIT_TEST_OE_DELTA_SIZE",
                                                   1UL << OE_DELTA_SIZE_BITS);
+#ifndef NO_PTHREADS
+       pthread_mutex_init(&pdata->lock, NULL);
+#endif
 }
 
 struct object_entry *packlist_alloc(struct packing_data *pdata,