* conf/i386-pc.rmk (pkglib_MODULES): Add `png.mod'.
(png_mod_SOURCES): New variable.
(png_mod_CFLAGS): Likewise.
(png_mod_LDFLAGS): Likewise.
* video/readers/png.c: New file.
* conf/i386-pc.rmk (pkglib_MODULES): Add `png.mod'.
(png_mod_SOURCES): New variable.
(png_mod_CFLAGS): Likewise.
(png_mod_LDFLAGS): Likewise.
* video/readers/png.c: New file.