nixpkgs/pkgs/system/system.fix

Package(
  [ ("name", "system")
  , ("build", Relative("system/populate-linkdirs.pl"))

  , ("actPkgConfig", IncludeFix("pkgconfig/pkgconfig.fix"))
  , ("actSubversion", IncludeFix("subversion/subversion.fix"))
  , ("actPan", IncludeFix("pan/pan.fix"))
  ]
)