c++: Add -std=gnu++20 option [PR93958]

[gcc.git] / gcc / c-family / c.opt

diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index b7e4fe146b26ff05159fcc8269ae36eafb6888ae..1cd585fa71d5c15c3bff0ff922d9a6424ac8c359 100644 (file)
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -2149,7 +2149,11 @@ Conform to the ISO 2017 C++ standard with GNU extensions.
 
 std=gnu++2a
 C++ ObjC++
-Conform to the ISO 2020(?) C++ draft standard with GNU extensions (experimental and incomplete support).
+Conform to the ISO 2020 C++ draft standard with GNU extensions (experimental and incomplete support).
+
+std=gnu++20
+C++ ObjC++ Alias(std=gnu++2a)
+Conform to the ISO 2020 C++ draft standard with GNU extensions (experimental and incomplete support).
 
 std=gnu11
 C ObjC