From 3d31f117e09a0f286ef875596f6046e78698286d Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Wed, 9 Mar 2022 16:22:58 +0100
Subject: [PATCH] express: Fix compilation error with GCC

---
 panda/src/express/weakPointerToBase.I | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/panda/src/express/weakPointerToBase.I b/panda/src/express/weakPointerToBase.I
index 11b04dabfe..41206e0994 100644
--- a/panda/src/express/weakPointerToBase.I
+++ b/panda/src/express/weakPointerToBase.I
@@ -33,9 +33,7 @@ WeakPointerToBase(To *ptr) {
 template<class T>
 INLINE WeakPointerToBase<T>::
 WeakPointerToBase(const PointerToBase<T> &copy) {
-  // This double-casting is a bit of a cheat to get around the inheritance
-  // issue--it's difficult to declare a template class to be a friend.
-  To *ptr = (To *)((const WeakPointerToBase<To> *)&copy)->_void_ptr;
+  To *ptr = (To *)copy._void_ptr;
   _void_ptr = ptr;
   if (ptr != nullptr) {
     _weak_ref = ptr->weak_ref();