#394 v0.6.x: does not compile on debian/unstable

[whocares0101]

After updating my debian/unstable retroshare won't compile anymore.
Latest git/master (137d71c0d9f912e152d2f12579da04cc33eb6e7b) and up-to-date debian sid amd64.

openpgpsdk/openssl_crypto.c: In function ‘test_secret_key’:
openpgpsdk/openssl_crypto.c:48:9: error: dereferencing pointer to incomplete type ‘RSA {aka struct rsa_st}’
test->n=BN_dup(skey->public_key.key.rsa.n);
^~
openpgpsdk/openssl_crypto.c: In function ‘ops_dsa_verify’:
openpgpsdk/openssl_crypto.c:395:9: error: dereferencing pointer to incomplete type ‘DSA_SIG {aka struct DSA_SIG_st}’
osig->r=sig->r;
^~
openpgpsdk/openssl_crypto.c:411:9: error: dereferencing pointer to incomplete type ‘DSA {aka struct dsa_st}’
odsa->p=dsa->p;
^~
Makefile.openpgpsdk:478: recipe for target 'temp/linux/obj/openssl_crypto.o' failed