File gnutls-C23.patch of Package gnutls

Index: gnutls-3.8.12/lib/fipshmac.c
===================================================================
--- gnutls-3.8.12.orig/lib/fipshmac.c
+++ gnutls-3.8.12/lib/fipshmac.c
@@ -44,6 +44,14 @@
 #define HMAC_ALGO GNUTLS_MAC_SHA256
 #define HMAC_STR_SIZE (2 * HMAC_SIZE + 1)
 
+/* Without C99 macros these functions have to
+ * be called. This may affect performance.
+ */
+void _gnutls_null_log(void *, ...)
+{
+        return;
+}
+
 static int get_hmac(const char *path, char *hmac, size_t hmac_size)
 {
 	int ret;