From 8cf3554399bbfe8b6b2882f6ed1b80bfb0d339b2 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 4 Feb 2020 22:59:31 +0100
Subject: [PATCH] Update png submodule to avoid -Wundef warnings during build

No real changes.
---
 src/png | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/png b/src/png
index 5668fc8fd6..8cb5f8f158 160000
--- a/src/png
+++ b/src/png
@@ -1 +1 @@
-Subproject commit 5668fc8fd6cceb79cfd8dd3cdec24a4f998cfcea
+Subproject commit 8cb5f8f1587b95a0e86fa8c2becea0cef8ee0a8b