Comment 12 for bug 721029

Builds fine with libpng-1.2.43 (OS X 10.5.8 i386)

See also:
« Changes to Libpng from version 1.2.42 to 1.4.0 (January 4, 2010)
(…)
5. Other changes
(…)
   d. Direct access to png_ptr->jmpbuf has been deprecated since libpng
      version 1.0.6, and libpng now generates a warning about it.

      To avoid such warnings, change
        setjmp(png_ptr->jmpbuf)

      to
        setjmp(png_jmpbuf(png_ptr))
(…)»
<http://www.libpng.org/pub/png/src/libpng-1.2.x-to-1.4.x-summary.txt>