stdnoreturn: port to MSVC better MSVC standard headers use __declspec(noreturn), so #define noreturn to empty on that platform. Reported by Bruno Haible in <http://lists.gnu.org/archive/html/bug-gnulib/2012-02/msg00152.html>. * lib/stdnoreturn.in.h (noreturn): Define to empty on MSVC. * doc/posix-headers/stdnoreturn.texi (stdnoreturn.h): Document this.