fix build issues

Signed-off-by: Abhinav Saxena <[email protected]>

tests/vectors_sig.c

@@ -423,6 +423,9 @@ static int sig_gen_vector_ext(const char *method_name,
 	int rc = -1, ret = -1;
 	size_t sigLen;
 
+	void (*randombytes_init)(const uint8_t *, const uint8_t *) = NULL;
+	void (*randombytes_free)(void) = NULL;
+
 	sig = OQS_SIG_new(method_name);
 	if (sig == NULL) {
 		printf("[vectors_sig] %s was not enabled at compile-time.\n", method_name);
@@ -445,9 +448,6 @@ static int sig_gen_vector_ext(const char *method_name,
 		goto err;
 	}
 
-	void (*randombytes_init)(const uint8_t *, const uint8_t *) = NULL;
-	void (*randombytes_free)(void) = NULL;
-
 	if (is_ml_dsa(method_name)) {
 		OQS_randombytes_custom_algorithm(&MLDSA_randombytes);
 		randombytes_init = &MLDSA_randombytes_init;