diff -r 69f8c0acaac7 -r 675be0a45157 mandelbrot.c
--- a/mandelbrot.c	Sat May 31 19:35:21 2008 +0300
+++ b/mandelbrot.c	Sun Jun 01 01:48:09 2008 +0300
@@ -77,6 +77,11 @@
 
         if (!info_ptr)
             goto error;
+
+        // libpng error handling
+        if (setjmp(png_jmpbuf(png_ptr))) {
+            goto error;
+        }
         
         if (ctx->io_stream) {
             // use normal libpng I/O