http://atlas.cvs.sourceforge.net/viewvc/atlas/Atlas/src/Image.cxx?r1=1.7&r2=1.8

--- src/Image.cxx
+++ src/Image.cxx
@@ -319,7 +319,7 @@
 	return;
     }
 
-    if (setjmp(png_ptr->jmpbuf)) {
+    if (setjmp(png_jmpbuf(png_ptr))) {
 	png_destroy_write_struct(&png_ptr, &info_ptr);
 	fclose(fp);
 	return;