[RFC 1/2] libstdc++: Use _GLIBCXX_NOEXCEPT for codecvt.

[Jonathan Wakely]

On 25/04/14 23:45 +0200, Rüdiger Sonderfeld wrote:
>C++11 changed from throw() to noexcept.

This patch is wrong, it removes the exception specs in C++03 mode.
The _GLIBCXX_USE_NOEXCEPT macro would be correct.