anchor.diff:  , directfb
   , fdk_aac
   , flite
  +, gsm
   , libaom
   , libdc1394
   , libde265
  
positive.code: 
    patches = [
      ./fix_pkgconfig_includedir.patch
    ];
  
    src = fetchurl {
  
negative.code:     directfb
      fdk_aac
      flite
      gsm
      libaom
      libdc1394
      libde265
  