Bugfix:

While testing the other my previous commit (removing deformflag stuff), I
noticed that trying to change set a parent object for the current object (via
the Object Properties) would cause the current object to "blow up", and for
cyclic dependency warnings to be spewed to the console.

Adding a dummy usage of one of the vars here seems to solve it. Perhaps a case
of weirdo compiler optimisations?

1 files changed, 5 insertions, 2 deletions

diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index 38f0b7e26cb..ca18eac8e60 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -383,8 +383,11 @@ static void rna_Object_parent_set(PointerRNA *ptr, PointerRNA value)
 {
 	Object *ob = (Object*)ptr->data;
 	Object *par = (Object*)value.data;
-
-	ED_object_parent(ob, par, ob->partype, ob->parsubstr);
+	
+	/* NOTE: this dummy check here prevents this method causing weird runtime errors on mingw 4.6.2 */
+	if (ob) {
+		ED_object_parent(ob, par, ob->partype, ob->parsubstr);
+	}
 }
 
 static void rna_Object_parent_type_set(PointerRNA *ptr, int value)