libpngpf(3) on macOS
The text d230e04b451f, as Mac OS X 10.6.2, Mac OS X 10.6.1, Mac OS X 10.6, Mac OS X 10.5.8, Mac OS X 10.5.7 shipped it.
Portable Network Graphics (PNG) Reference Library 1.2.35 (private functions)
The text d230e04b451f, as Mac OS X 10.6.2, Mac OS X 10.6.1, Mac OS X 10.6, Mac OS X 10.5.8, Mac OS X 10.5.7 shipped it.
Portable Network Graphics (PNG) Reference Library 1.2.35 (private functions)