Only use DSA-functions if available.

Submitted by: "Hellan,Kim KHE" <KHE@kmd.dk>
Reviewed by:
PR: 167

apps/x509.c

@@ -923,10 +923,14 @@ bad:
 
 				BIO_printf(bio_err,"Generating certificate request\n");
 
+#ifndef OPENSSL_NO_DSA
 		                if (pk->type == EVP_PKEY_DSA)
 		                        digest=EVP_dss1();
-				else if (pk->type == EVP_PKEY_ECDSA)
+#endif
+#ifndef OPENSSL_NO_ECDSA
+				if (pk->type == EVP_PKEY_ECDSA)
 					digest=EVP_ecdsa();
+#endif
 
 				rq=X509_to_X509_REQ(x,pk,digest);
 				EVP_PKEY_free(pk);