Update png submodule to avoid -Wundef warnings

This commit is contained in:
Vadim Zeitlin 2017-11-13 22:12:24 +01:00
parent f65a608993
commit 760bd1bf4e

@ -1 +1 @@
Subproject commit 8129d71d80d1274b62949b07c4f2aef728c20fd9
Subproject commit d532334ef514e9625559e76c83119d317ca790f3