anchor.diff:  
     strictConcurrency = callPackage ../development/libraries/haskell/strictConcurrency {};
   
  -  svgcairo = callPackage ../development/libraries/haskell/svgcairo {};
  +  svgcairo = callPackage ../development/libraries/haskell/svgcairo {
  +    libc = pkgs.stdenv.gcc.libc;
  +  };
   
     systemFilepath = callPackage ../development/libraries/haskell/system-filepath {};
   
  
positive.code: 
    cairo = callPackage ../development/libraries/haskell/cairo {
      inherit (pkgs) cairo zlib;
    };
  
    caseInsensitive = callPackage ../development/libraries/haskell/case-insensitive {};
  
negative.code:   glade = callPackage ../development/libraries/haskell/glade {
      inherit (pkgs.gnome) libglade;
      gtkC = pkgs.gnome.gtk;
      libc = pkgs.stdenv.gcc.libc;
    };
  
    glib = callPackage ../development/libraries/haskell/glib {
      glib = pkgs.glib;
      libc = pkgs.stdenv.gcc.libc;
    };
  
    GlomeVec = callPackage ../development/libraries/haskell/GlomeVec {};
  