anchor.diff:  { stdenv
   , buildGoModule
   , fetchFromGitHub
  +, go-md2man
   , installShellFiles
   , pkg-config
   , gpgme
  
positive.code: 
  buildGoModule rec {
    pname = "buildah";
    version = "1.15.2";
  
    src = fetchFromGitHub {
      owner = "containers";
      repo = "buildah";
      rev = "v${version}";
      sha256 = "13kqcdrdzkbg6h5za6hhkzdx4nbrg5yl97ydj2hfcakl00q4y0dp";
    };
  
    outputs = [ "out" "man" ];
  
negative.code: 
    buildPhase = ''
      patchShebangs .
      make bin/buildah GIT_COMMIT="unknown"
      make -C docs GOMD2MAN="${go-md2man}/bin/go-md2man"
    '';
  
    installPhase = ''
      install -Dm755 bin/buildah $out/bin/buildah
      installShellCompletion --bash contrib/completions/bash/buildah
      make -C docs install PREFIX="$man"
    '';
  