anchor.diff:      };
     };
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "An OpenType text shaping engine";
       homepage = http://www.freedesktop.org/wiki/Software/HarfBuzz;
       license = with licenses; [
  
positive.code: 
    postPatch = optionalString doCheck (''
      patchShebangs test/shaping/
    '' + /* failing test, https://bugs.freedesktop.org/show_bug.cgi?id=89190 */ ''
      sed -i test/shaping/Makefile.{am,in} \
        -e 's|tests/arabic-fallback-shaping.tests||'
    '' + /* test fails */ ''
      sed -i test/shaping/Makefile.{am,in} \
        -e 's|tests/vertical.tests||'
    '');
  
    configureFlags = [
  
negative.code: }:
  
  let
    inherit (lib)
      boolEn
      boolWt
      optionals
  