Index: Mk/Uses/compiler.mk
===================================================================
--- Mk/Uses/compiler.mk
+++ Mk/Uses/compiler.mk
@@ -4,7 +4,7 @@
 #
 # Feature:	compiler
 # Usage:	USES=compiler or USES=compiler:ARGS
-# Valid ARGS:	env (default, implicit) c++0x c++11-lib c++11-lang c11 openmp nestedfct features
+# Valid ARGS:	env (default, implicit) c++0x c++11-lang c++14-lang c++17-lang gcc-c++11-lib c++11-lib c11 openmp nestedfct features
 #
 # c++0x:	The port needs a compiler understanding C++0X
 # c++11-lang:	The port needs a compiler understanding C++11