Undefined references while linking with lgrpc

[Jaya Smruthi Elapavuluri]

Hi All.

While linking with lgrpc and lgrpc++ am getting the following as undefined references:

lib/libgrpc.so.0.11.0.0: undefined reference to `EVP_DigestVerifyInit'

lib/libgrpc.so.0.11.0.0: undefined reference to `SSL_get0_next_proto_negotiated'

/lib/libgrpc.so.0.11.0.0: undefined reference to `SSL_get_servername'

lib/libgrpc.so.0.11.0.0: undefined reference to `SSL_set_SSL_CTX'

lib/libgrpc.so.0.11.0.0: undefined reference to `EVP_DigestVerifyFinal'

lib/libgrpc.so.0.11.0.0: undefined reference to `EVP_DigestSignFinal'

lib/libgrpc.so.0.11.0.0: undefined reference to `EVP_DigestSignInit'

lib/libgrpc.so.0.11.0.0: undefined reference to `TLSv1_2_method'

/lib/libgrpc.so.0.11.0.0: undefined reference to `SSL_CTX_set_next_proto_select_cb'

/lib/libgrpc.so.0.11.0.0: undefined reference to `SSL_CTX_set_next_protos_advertised_cb'

collect2: ld returned 1 exit status

Any help  on how to resolve this? 

Thanks

JS

[Craig Tiller]

-lcrypto -lssl (you need OpenSSL linked also)

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[JS]

Linking with openssl.so.0.9.8 is still throwing these undefined references. 

Could you please comment on this? Is it because of the openssl version? 

[Nicolas Noble]

Yes. You need OpenSSL 1.0.2 at a minimum.

To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/55742112-884e-4c8a-b9f9-a2982b2914d1%40googlegroups.com.

[Smruthi Elapavuluri]

There is no other way to fix, if we cannot use 1.0.2 version ? 

[Nicolas Noble]

There's a way to make it work with OpenSSL 1.0.1, but that'd be it.

How did you get the library in the first place if you don't have a proper version of OpenSSL ?