This clarifies that c++2[03] intentionally does not enable c++20 modules.
PR c++/99472
gcc/cp/
parser.c (cp_parser_diagnose_invalid_type_name): Clarify
that C++20 does not yet imply modules.
--
Nathan Sidwell
diff --git c/gcc/cp/parser.c w/gcc/cp/parser.c
index 378e4572f8b..06bb094a299 100644
--- c/gcc/cp/parser.c
+++ w/gcc/cp/parser.c
@@ -3469,11 +3469,15 @@ cp_parser_diagnose_invalid_type_name (cp_parser *parser, tree id,
else if (TREE_CODE (id) == IDENTIFIER_NODE
&& (id_equal (id, "module") || id_equal (id, "import")))
{
- if (!modules_p ())
- inform (location, "%qE only available with %<-fmodules-ts%>", id);
- else
- inform (location, "%qE was not recognized as a module control-line",
+ if (modules_p ())
+ inform (location, "%qE is not recognized as a module control-line",
+ id);
+ else if (cxx_dialect < cxx20)
+ inform (location, "C++20 %qE only available with %<-fmodules-ts%>",
id);
+ else
+ inform (location, "C++20 %qE only available with %<-fmodules-ts%>"
+ ", which is not yet enabled with %<-std=c++20%>", id);
}
else if (cxx_dialect < cxx11
&& TREE_CODE (id) == IDENTIFIER_NODE
