3 Fix build with png-1.5.
5 --- RGBGraph.cc.orig 2006-03-14 01:59:34.000000000 +0000
7 @@ -118,7 +118,7 @@ RGBGraph::writeAsPNG (png_rw_ptr write_d
8 /* Set error handling. REQUIRED if you aren't supplying your own
9 * error hadnling functions in the png_create_write_struct() call.
11 - if (setjmp(png_ptr->jmpbuf))
12 + if (setjmp(png_jmpbuf(png_ptr)))
13 barf (PNG_WRITE_FAILURE);
15 /* set up the output control if you are using standard C streams */