require 'formula' class Fltk < Formula url 'http://ftp2.easysw.com/pub/fltk/1.1.10/fltk-1.1.10-source.tar.gz' homepage 'http://www.fltk.org/' head 'http://ftp.easysw.com/pub/fltk/snapshots/fltk-1.3.x-r8411.tar.bz2' if ARGV.build_head? md5 '0c44ccd5d9b86c7afb2f402d5e0b56db' depends_on 'jpeg' else md5 'e6378a76ca1ef073bcb092df1ef3ba55' end def install if ARGV.build_head? ENV.libpng system "autoconf" end system "./configure", "--prefix=#{prefix}", "--enable-threads" system "make install" end end