ifdef out support for for python owning and freeing BPy_StructRNA because this is only used for doc generation and it makes _every_ blender/python instance 4 bytes bigger - vertex/bezier point/object/scene/group etc.

source/blender/python/intern/bpy_rna.h

@@ -62,6 +62,11 @@
 #if defined(USE_PYRNA_INVALIDATE_GC) && defined(USE_PYRNA_INVALIDATE_WEAKREF)
 #error "Only 1 reference check method at a time!"
 #endif
+
+/* only used by operator introspection get_rna(), this is only used for doc gen
+ * so prefer the leak to the memory bloat for now. */
+// #define PYRNA_FREE_SUPPORT
+
 /* --- end bpy build options --- */
 
 struct ID;
@@ -108,7 +113,10 @@ typedef struct {
 	 * hold onto the collection iterator to prevent it from freeing allocated data we may use */
 	PyObject *reference;
 #endif /* !USE_PYRNA_STRUCT_REFERENCE */
+
+#ifdef PYRNA_FREE_SUPPORT
 	int freeptr; /* needed in some cases if ptr.data is created on the fly, free when deallocing */
+#endif /* PYRNA_FREE_SUPPORT */
 } BPy_StructRNA;
 
 typedef struct {