bpo-11063: Use more reliable way to check if uuid function exists (GH-4343)

diff --git a/configure b/configure
index 7944f8f..0e74828 100755
--- a/configure
+++ b/configure
@@ -9522,8 +9522,7 @@
 {
 
 #ifndef uuid_generate_time_safe
-uuid_t out;
-uuid_generate_time_safe(out);
+void *x = uuid_generate_time_safe
 #endif
 
   ;