about deprecated function use and deprecated structure access unless the
user defines PNG_PEDANTIC_WARNINGS.  Added "#define PNG_NO_PEDANTIC_WARNINGS"
in the libpng source files.  Removed "-DPNG_CONFIGURE_LIBPNG" from the
makefiles and projects since the warnings no longer depend on this.

from 1.2.41beta05, 1.2.41beta11, and 1.2.41beta12.

everywhere except pngconf.h as in libpng-1.4.0beta78 and later.

and "else statement;" into two lines.