cd($this->source_dir) ->exec('chmod +x configure') ->exec( './configure ' . '--enable-static --disable-shared ' . '--disable-sasl ' . "--prefix={$rootdir}" ) ->exec('make clean') ->exec('sed -ie "s/-Werror//g" ' . $this->source_dir . '/Makefile') ->exec("make -j{$this->builder->concurrency}") ->exec('make install'); } }