class M4 < Formula desc "Macro processing language" homepage "https://www.gnu.org/software/m4" url "https://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.xz" mirror "https://ftpmirror.gnu.org/m4/m4-1.4.18.tar.xz" sha256 "f2c1e86ca0a404ff281631bdc8377638992744b175afb806e25871a24a934e07" bottle do cellar :any_skip_relocation sha256 "b0fe54c5705842618e6446c4c804330df89a78ed09bd5b013b2c5fabf34b218f" => :sierra sha256 "7daa296cf49de573214b4f2c72e3b621bbbc1ef5bfebfbe00fb18a70ba8e3152" => :el_capitan sha256 "00d9327f2e8a59996228569bf4faff1c6550653eb3e20353e77f73a34063f3eb" => :yosemite end keg_only :provided_by_osx def install system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make" system "make", "install" end test do assert_match "Homebrew", pipe_output("#{bin}/m4", "define(TEST, Homebrew)\nTEST\n") end end