Merge 2025-06 CWG Motion 3

P3618R0 Allow attaching main to the global module

Author: tkoeppe

source/basic.tex

@@ -6882,7 +6882,7 @@
 \keyword{inline}, \keyword{static}, \keyword{constexpr}, or \keyword{consteval} is ill-formed.
 The function \tcode{main} shall not be a coroutine\iref{dcl.fct.def.coroutine}.
 The \tcode{main} function shall not be declared with a
-\grammarterm{linkage-specification}\iref{dcl.link}.
+\grammarterm{linkage-specification}\iref{dcl.link} other than \tcode{"C++"}.
 A program that declares
 \begin{itemize}
 \item