Changes applied to the libpng-1.5.4/ tree as obtained from:
	http://www.libpng.org/ libpng-1.5.4.tar.xz

Copied:
	scripts/pnglibconf.h.prebuilt -> pnglibconf.h

Removed:
	config.guess
	config.sub
	depcomp
	install-sh
	ltmain.sh
	missing

