require 'formula' class Qwt < Formula url 'http://sourceforge.net/projects/qwt/files/qwt/6.0.0/qwt-6.0.0.tar.bz2' homepage 'http://qwt.sourceforge.net/' md5 '1795cf075ebce3ae048255d2060cbac0' depends_on 'qt' def install inreplace 'qwtconfig.pri' do |s| # change_make_var won't work because there are leading spaces s.gsub! /^\s*QWT_INSTALL_PREFIX\s*=(.*)$/, "QWT_INSTALL_PREFIX=#{prefix}" end system "qmake -config release" system "make install" end end