require 'formula' class Pngcrush < Formula homepage 'http://pmt.sourceforge.net/pngcrush/' url 'http://downloads.sourceforge.net/project/pmt/pngcrush/1.7.27/pngcrush-1.7.27.tar.bz2' md5 '582ab2b4c262b8837cc2d30bf7d14f33' def install # Required to successfully build the bundled zlib 1.2.6 ENV.append_to_cflags "-DZ_SOLO" system "make", "CC=#{ENV.cc}", "LD=#{ENV.cc}", "CFLAGS=#{ENV.cflags}", "LDFLAGS=#{ENV.ldflags}" bin.install 'pngcrush' end end