build: Do not link against libssl, only libcrypto

Signed-off-by: Alan Dunn <amdunn@gmail.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

src/CMakeLists.txt

@@ -28,7 +28,7 @@ if (HAVE_LIBSOCKET)
   )
 endif (HAVE_LIBSOCKET)
 
-if (OPENSSL_LIBRARIES)
+if (OPENSSL_CRYPTO_LIBRARIES)
   set(LIBSSH_PRIVATE_INCLUDE_DIRS
     ${LIBSSH_PRIVATE_INCLUDE_DIRS}
     ${OPENSSL_INCLUDE_DIRS}
@@ -36,9 +36,9 @@ if (OPENSSL_LIBRARIES)
 
   set(LIBSSH_LINK_LIBRARIES
     ${LIBSSH_LINK_LIBRARIES}
-    ${OPENSSL_LIBRARIES}
+    ${OPENSSL_CRYPTO_LIBRARIES}
   )
-endif (OPENSSL_LIBRARIES)
+endif (OPENSSL_CRYPTO_LIBRARIES)
 
 if (GCRYPT_LIBRARY)
   set(LIBSSH_PRIVATE_INCLUDE_DIRS