1. made CRT wrappers definitions indepenent of wxUSE_UNICODE: both ANSI and Unicode variants are now defined

2. split wxcrt.h into wxcrtbase.h with lowlevel compiler-specific definitions and wxcrt.h with ANSI- and Unicode-compatible wx wrappers


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46390 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -59,6 +59,9 @@ Changes in behaviour which may result in compilation errors
   to const wxChar*:
      wxLogError(_("error: %s"), !err.empty() ? (const wxChar*)err.c_str() : "")
 
+- wxCtime() and wxAsctime() return char*; this is incompatible with Unicode
+  build in wxWidgets 2.8 that returned wchar_t*. 
+
 - DigitalMars compiler has a bug that prevents it from using
   wxUniChar::operator bool in conditions and it erroneously reports type
   conversion ambiguity in expressions such as this: