Remove dependency on a file named "-lz"

diff --git a/revision.c b/revision.c
index 01386ed6d476a80e9ee8e3afe354be20caad67b3..12cd0529a5dfac9af01af0f47e895e9cf142c42a 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -313,8 +313,16 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
                case REV_TREE_NEW:
                        if (revs->remove_empty_trees &&
                            rev_same_tree_as_empty(p->tree)) {
-                               *pp = parent->next;
-                               continue;
+                               /* We are adding all the specified
+                                * paths from this parent, so the
+                                * history beyond this parent is not
+                                * interesting.  Remove its parents
+                                * (they are grandparents for us).
+                                * IOW, we pretend this parent is a
+                                * "root" commit.
+                                */
+                               parse_commit(p);
+                               p->parents = NULL;
                        }
                /* fallthrough */
                case REV_TREE_DIFFERENT: