(to an OS implementation). Instead, check when delcaring the wxSnprintf
and wxVsnprintf wrappers and only define them if wxVsnprintf_ has been defined.
This allows HAVE_VSWPRINTF to be false yet still allow other OS wchar
functions to be used which will be needed to work around FreeBSD/Darwin.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26479 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775