[Gtkradiant] [Bug 684] Cleanup pnp NULL Typecasts in plugins/imagepng/plugin.cpp

[gtkradiant@zerowing.idsoftware.com]

http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=684





------- Additional Comments From eviltypeguy@qeradiant.com  2003-04-14 11:03 -------
Even versions far back as 1.0.13 have png_infopp_NULL, etc. so my assumption
would be that on my system another library is already putting libpng into the
include path somehow. So adding png-config --cflags for non-RH9 systems would
work fine probably, or on pkg-config based distributions "pkg-config --cflags
libgpng12", easy to fix though really.