anchor.diff:      description = "A lightweight and flexible command-line JSON processor";
       license = licenses.mit;
       maintainers = with maintainers; [ raskin globin ];
  -    platforms = with platforms; linux ++ darwin;
  -    downloadPage = "http://stedolan.github.io/jq/download/";
  +    platforms = platforms.unix;
  +    downloadPage = "https://stedolan.github.io/jq/download/";
       updateWalker = true;
     };
   }
  
positive.code: { lib, stdenv, fetchpatch, fetchFromGitHub, autoreconfHook
  , onigurumaSupport ? true, oniguruma }:
  
  stdenv.mkDerivation rec {
    pname = "jq";
  
negative.code:     "--datadir=\${doc}/share"
      "--mandir=\${man}/share/man"
    ] ++ lib.optional (!onigurumaSupport) "--with-oniguruma=no"
    # jq is linked to libjq:
    ++ lib.optional (!stdenv.isDarwin) "LDFLAGS=-Wl,-rpath,\\\${libdir}";
  
    doInstallCheck = true;
    installCheckTarget = "check";
  