anchor.diff:    postInstall = glib.flattenInclude;
   
     doCheck = true;
  -  enableParallelBuilding = true;
   
     meta = with stdenv.lib; {
       description = "A low-level library for pixel manipulation";
  
positive.code: };
  
  stdenv.mkDerivation rec {
    name = "pixman-0.32.8";
  
    src = fetchurl {
      url = "mirror://xorg/individual/lib/${name}.tar.bz2";
      sha1 = "5c57045622265b877c9bf02d531973eadf942140";
    };
  
    patches = optionals stdenv.cc.isClang [
  
negative.code:     "--disable-loongson-mmi" # mips
      (enFlag "mmx" (isi686 || isx86_64) null)
      (enFlag "sse2" (isi686 || isx86_64) null)
      (enFlag "ssse3" (isi686 || isx86_64) null)
      "--disable-vmx"
      (enFlag "arm-simd" isArm null)
      (enFlag "arm-neon" isArm null)
      "--disable-arm-iwmmxt"
      (enFlag "arm-iwmmxt2" isArm null)
      "--disable-mips-dspr2"
      (enFlag "gcc-inline-asm" cc.isGNU null)
      "--disable-static-testprogs"
      "--enable-timers"
  