diff -urN meka-0.73/srcs/libaddon/png/loadpng.c meka-0.73-patched/srcs/libaddon/png/loadpng.c
--- meka-0.73/srcs/libaddon/png/loadpng.c	2006-11-04 17:23:44.000000000 +1000
+++ meka-0.73-patched/srcs/libaddon/png/loadpng.c	2012-03-20 18:42:40.967502278 +1100
@@ -9,6 +9,7 @@
 #include "system.h" // allegro.h, because of STATICLINK stuff...
 #include <allegro/internal/aintern.h>
 #include "loadpng.h"
+#include "zlib.h"
 
 /* We need internals _color_load_depth and _fixup_loaded_bitmap.  The
  * first can be replaced by the new get_color_depth() function which
@@ -287,7 +288,7 @@
      * the normal method of doing things with libpng).  REQUIRED unless you
      * set up your own error handlers in the png_create_read_struct() earlier.
      */
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
 	/* Free all of the memory associated with the png_ptr and info_ptr */
 	png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 	pack_fclose(fp);
@@ -386,7 +387,7 @@
      * the normal method of doing things with libpng).  REQUIRED unless you
      * set up your own error handlers in the png_create_read_struct() earlier.
      */
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
 	/* Free all of the memory associated with the png_ptr and info_ptr */
 	png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
 	/* If we get here, we had a problem reading the file */
diff -urN meka-0.73/srcs/libaddon/png/savepng.c meka-0.73-patched/srcs/libaddon/png/savepng.c
--- meka-0.73/srcs/libaddon/png/savepng.c	2006-11-04 17:23:44.000000000 +1000
+++ meka-0.73-patched/srcs/libaddon/png/savepng.c	2012-03-20 18:43:07.823919248 +1100
@@ -140,7 +140,7 @@
     }
 
     /* Set error handling. */
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
 	/* If we get here, we had a problem reading the file. */
 	pack_fclose(fp);
 	png_destroy_write_struct(&png_ptr, (png_infopp)NULL);