anchor.diff:    installPhase = ''
       mkdir "$out"
       make install PREFIX="$out"
  -    cp -v cryptopp.dll "$out/lib/libcryptopp.so"
     '';
   
     doCheck = true;
  -  checkPhase = "make test";
  +  checkPhase = "LD_LIBRARY_PATH=`pwd` make test";
   
     meta = {
       description = "Crypto++, a free C++ class library of cryptographic schemes";
  
positive.code:       -e '/^CXXFLAGS =/s|-g -O2|-O3|'
    '';
  
    # Deal with one of the crappiest build system around there.
    buildPhase = ''
      # These guys forgot a file or something.
      : > modexppc.cpp
  
      make PREFIX="$out" all cryptopp.dll
    '';
  
    # TODO: Installing cryptotest.exe doesn't seem to be necessary. We run
  
negative.code:   '';
  
    cxxflags = if stdenv.isi686 then "-march=i686" else
               if stdenv.isx86_64 then "-march=nocona -fPIC" else
               "";
  
    configurePhase = ''
  