crypto++ server compilation

[gocu 0]

hello I'm trying to compile the game, I installed cryptopp 5.3.5 and at link time I get this error :

 undefined reference to `CryptoPP::RandomNumberGenerator::GenerateIntoBufferedTransformation(CryptoPP::BufferedTransformation&,
                                                                                             std::string const&, unsigned long)'

for cipher.o

Did anyone else had similar issue ? thanks in advance.

(I compile with gcc49 and cryptopp is linked properly)