Fix botan_privkey_create if the desired algorithm was not available in build

If DSA was disabled, caused memory corruption/crashes due to combination of
uninitialized object and the tests not checking return values as carefully
as they should.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/tests/unit_tls.cpp b/src/tests/unit_tls.cpp
index 77aebce93..28152e624 100644
--- a/src/tests/unit_tls.cpp
+++ b/src/tests/unit_tls.cpp
@@ -132,6 +132,8 @@ class Credentials_Manager_Test : public Botan::Credentials_Manager
                   chain.push_back(*m_dsa_ca);
                   break;
                   }
+#else
+               BOTAN_UNUSED(context);
 #endif
                }
             }