anchor.diff:      '';
       configurePlatforms = [];
       dontStrip = true;
  -  } // optionalAttrs isMingw {
  +  } // optionalAttrs hostPlatform.isMinGW {
       propagatedBuildInputs = [ ];
     };
   
  
positive.code:       -no-svg
        -make qmake -make libs -nomake tools
        -nomake demos -nomake examples -nomake docs
      '' + optionalString isMingw " -xplatform win32-g++-4.6";
      patches = [];
      preConfigure = ''
        sed -i -e 's/ g++/ ${stdenv.cross.config}-g++/' \
          -e 's/ gcc/ ${stdenv.cross.config}-gcc/' \
          -e 's/ ar/ ${stdenv.cross.config}-ar/' \
          -e 's/ strip/ ${stdenv.cross.config}-strip/' \
          -e 's/ windres/ ${stdenv.cross.config}-windres/' \
          mkspecs/win32-g++/qmake.conf
      '';
  
  
negative.code: { stdenv, fetchurl, fetchpatch, substituteAll
  , hostPlatform
  , libXrender, libXinerama, libXcursor, libXmu, libXv, libXext
  , libXfixes, libXrandr, libSM, freetype, fontconfig, zlib, libjpeg, libpng
  , libmng, which, mesaSupported, mesa, mesa_glu, openssl, dbus, cups, pkgconfig
  