require 'formula' class Ungif < Formula homepage 'http://sourceforge.net/projects/giflib/' url 'http://downloads.sourceforge.net/project/giflib/giflib%204.x/giflib-4.1.6/giflib-4.1.6.tar.bz2' md5 '7125644155ae6ad33dbc9fc15a14735f' def install ENV.j1 system "./configure", "--prefix=#{prefix}" system "make all" system "make install" end end