Commit
89cab5989d6fe1f1c05d3628c98176ef7e227c0d
by noreplygcc-14: Add patches to allow nontrivial use of the C++ <locale> API
The generic locale implementation chosen naturally by gcc's configure
throws an exception if a locale other than "C" is selected. We can do
better.
Use the DragonflyBSD locale support with a few minor changes.
From my illumos-gcc pull request, https://github.com/illumos/gcc/pull/56
(commit: 89cab59)