-// check whether we should include wchar.h or equivalent
-# if !defined(wxUSE_WCHAR_T)
-# if defined(__VISUALC__) && (__VISUALC__ < 900)
-# define wxUSE_WCHAR_T 0 // wchar_t is not available for MSVC++ 1.5
-# elif defined(__UNIX__)
-# if defined(HAVE_WCSTR_H) || defined(HAVE_WCHAR_H) || defined(__FreeBSD__) || defined(__DARWIN__)
-# define wxUSE_WCHAR_T 1
-# else
-# define wxUSE_WCHAR_T 0
-# endif
-# elif defined(__GNUWIN32__) && !defined(__MINGW32__) // Cygwin (not Mingw32) doesn't have wcslen.h, needed in buffer.h
-# define wxUSE_WCHAR_T 0
-# elif defined(__BORLANDC__) // WIN16 BC++
-# define wxUSE_WCHAR_T 0
-# elif defined(__WATCOMC__)
-# define wxUSE_WCHAR_T 0
-# elif defined(__VISAGECPP__) && (__IBMCPP__ < 400)
-# define wxUSE_WCHAR_T 0
-# else
- // add additional compiler checks if this fails
-# define wxUSE_WCHAR_T 1
-# endif
-# endif // !defined(wxUSE_WCHAR_T)
-
-# if wxUSE_WCHAR_T
-# ifdef HAVE_WCSTR_H
-# include <wcstr.h>
-# else
-# if defined(HAVE_WCHAR_H)
-
-// include wchar.h to get wcslen() declaration used by wx/buffer.h
-# include <wchar.h>
-
-# elif defined(__FreeBSD__) || defined(__DARWIN__)
-
-// include stdlib.h for wchar_t, wcslen is provided in wxchar.cpp
-# include <stdlib.h>
-size_t WXDLLEXPORT wcslen(const wchar_t *s);
-
-# endif
-# endif
-# endif
-
-// check whether we are doing Unicode
-# if wxUSE_UNICODE
-
-# include <wctype.h>
-
-// this is probably glibc-specific
-# if defined(__WCHAR_TYPE__)
-
-typedef __WCHAR_TYPE__ wxChar;
-typedef signed __WCHAR_TYPE__ wxSChar;
-typedef unsigned __WCHAR_TYPE__ wxUChar;
-
-# define _T(x) L##x
-
- // ctype.h functions (wctype.h)
-# define wxIsalnum iswalnum
-# define wxIsalpha iswalpha
-# define wxIsctrl iswcntrl
-# define wxIsdigit iswdigit
-# define wxIsgraph iswgraph
-# define wxIslower iswlower
-# define wxIsprint iswprint
-# define wxIspunct iswpunct
-# define wxIsspace iswspace
-# define wxIsupper iswupper
-# define wxIsxdigit iswxdigit
-
-# if defined(__GLIBC__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)
- // /usr/include/wctype.h incorrectly declares translations tables which
- // provokes tons of compile-time warnings - try to correct this
-# define wxTolower(wc) towctrans((wc), (wctrans_t)__ctype_tolower)
-# define wxToupper(wc) towctrans((wc), (wctrans_t)__ctype_toupper)
-# else
-# define wxTolower towlower
-# define wxToupper towupper
-# endif // gcc/!gcc
-
- // string.h functions (wchar.h)
-# define wxStrcat wcscat
-# define wxStrchr wcschr
-# define wxStrcmp wcscmp
-# define wxStrcoll wcscoll
-# define wxStrcpy wcscpy
-# define wxStrcspn wcscspn
-# define wxStrlen_ wcslen // used in wxStrlen inline function
-# define wxStrncat wcsncat
-# define wxStrncmp wcsncmp
-# define wxStrncpy wcsncpy
-# define wxStrpbrk wcspbrk
-# define wxStrrchr wcsrchr
-# define wxStrspn wcsspn
-# define wxStrstr wcsstr
-# define wxStrtod wcstod
-# define wxStrtok wcstok
-# define wxStrtol wcstol
-# define wxStrtoul wcstoul
-# define wxStrxfrm wcsxfrm
-
-// glibc doesn't have wc equivalents of the other stuff
-# define wxNEED_WX_STDIO_H
-# define wxNEED_WX_STDLIB_H
-# define wxNEED_WX_TIME_H
-
-# else//!glibc
-# error "Please define your compiler's Unicode conventions in wxChar.h"
-# endif
-# else//!Unicode
-
-# include <ctype.h>
-# include <string.h>
-
-# if 0 // temporary - preserve binary compatibilty
- typedef char wxChar;
- typedef signed char wxSChar;
- typedef unsigned char wxUChar;
-# else
-# define wxChar char
-# define wxSChar signed char
-# define wxUChar unsigned char
-# endif
-
-# if defined(__FreeBSD__) || defined(__DARWIN__)
-# undef _T
-# endif
-
-# if !defined(__MINGW32__) || !defined(_T)
-# define _T(x) x
-# endif
-
- // ctype.h functions
-# define wxIsalnum isalnum
-# define wxIsalpha isalpha
-# define wxIsctrl isctrl
-# define wxIsdigit isdigit
-# define wxIsgraph isgraph
-# define wxIslower islower
-# define wxIsprint isprint
-# define wxIspunct ispunct
-# define wxIsspace isspace
-# define wxIsupper isupper
-# define wxIsxdigit isxdigit
-# define wxTolower tolower
-# define wxToupper toupper
+// although global macros with such names are normally bad, we want to have
+// another name for _T() which should be used to avoid confusion between _T()
+// and _() in wxWindows sources
+#define wxT(x) _T(x)
+
+// Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs
+#ifndef __TFILE__
+ #define __XFILE__(x) wxT(x)
+ #define __TFILE__ __XFILE__(__FILE__)
+#endif
+
+#ifndef __TDATE__
+ #define __XDATE__(x) wxT(x)
+ #define __TDATE__ __XDATE__(__DATE__)
+#endif
+
+#ifndef __TTIME__
+ #define __XTIME__(x) wxT(x)
+ #define __TTIME__ __XTIME__(__TIME__)
+#endif
+
+// ----------------------------------------------------------------------------
+// define wxFoo() function for each standard foo() function whose signature
+// (exceptionally including the return type) includes any mention of char:
+// wxFoo() is going to be a Unicode-friendly version of foo(), i.e. will have
+// the same signature but with char replaced by wxChar which allows us to use
+// it in Unicode build as well
+// ----------------------------------------------------------------------------
+
+#ifdef wxHAVE_TCHAR_SUPPORT
+ #include <ctype.h>
+
+ // ctype.h functions
+ #define wxIsalnum _istalnum
+ #define wxIsalpha _istalpha
+ #define wxIsctrl _istctrl
+ #define wxIsdigit _istdigit
+ #define wxIsgraph _istgraph
+ #define wxIslower _istlower
+ #define wxIsprint _istprint
+ #define wxIspunct _istpunct
+ #define wxIsspace _istspace
+ #define wxIsupper _istupper
+ #define wxIsxdigit _istxdigit
+ #define wxTolower _totlower
+ #define wxToupper _totupper