https://bugs.gentoo.org/206258
https://bugs.gentoo.org/383207
--- a/configure.in
+++ b/configure.in
@@ -101,3 +101,3 @@
     CXXFLAGS="$CXXFLAGS -I/usr/X11R6/include"
-	AC_CHECK_LIB(png12, main,, AC_MSG_ERROR(libpng is needed))
+	AC_CHECK_LIB(png, main,, AC_MSG_ERROR(libpng is needed))
 	AC_CHECK_LIB(z, main,, AC_MSG_ERROR(libz is needed))
--- a/game/main.cpp
+++ b/game/main.cpp
@@ -30,2 +30,4 @@
 
+#include <zlib.h>
+
 void migrateConfig( void)
--- a/utilssdl/PNG.cpp
+++ b/utilssdl/PNG.cpp
@@ -47,3 +47,3 @@
 
-    check = fwrite( data, 1, length, (FILE *)(png->io_ptr));
+    check = fwrite( data, 1, length, (FILE *)(png_get_io_ptr(png)));
     if( check != length)
@@ -74,3 +74,3 @@
 
-    if( setjmp(_png->jmpbuf))
+    if( setjmp(png_jmpbuf(_png)))
     {