ChainWalkContext.cpp:14:26: error: openssl/rand.h: No such file or directory ChainWalkContext.cpp: In member function ‘void CChainWalkContext::GenerateRandomIndex()’: ChainWalkContext.cpp:348: error: ‘RAND_bytes’ was not declared in this scope HashAlgorithm.cpp:9:25: error: openssl/des.h: No such file or directory HashAlgorithm.cpp:10:25: error: openssl/md5.h: No such file or directory HashAlgorithm.cpp:11:25: error: openssl/sha.h: No such file or directory HashAlgorithm.cpp:16: error: ‘des_key_schedule’ has not been declared