@@ -10,9 +10,10 @@
 sc-flags = $(if $(debug),-d3,-O$(sc-opt))
 sc = $(SC) $(sc-flags)
 
 cc-opt = fast
-cc-flags = $(if $(debug),-g,-O$(cc-opt))
+cc-std = c2x
+cc-flags = $(if $(debug),-g,-O$(cc-opt)) -std=$(cc-std)
 cc = $(CC) $(cc-flags)
 
 post = $(if $(debug),, && strip $@)
 cc-post = $(post)