Add the possibility to build without the ENGINE framework.

PR: 287

ssl/ssltest.c

@@ -133,7 +133,9 @@
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 #include <openssl/ssl.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 #include <openssl/err.h>
 #include <openssl/rand.h>
 
@@ -828,7 +830,9 @@ end:
 #ifndef OPENSSL_NO_RSA
 	free_tmp_rsa();
 #endif
+#ifndef OPENSSL_NO_ENGINE
 	ENGINE_cleanup();
+#endif
 	CRYPTO_cleanup_all_ex_data();
 	ERR_free_strings();
 	ERR_remove_state(0);