Do not #undef wxNEED_PRINTF_CONVERSION if wxVsnprintf_ has not been defined

(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

diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index f0eea9f373b9c6d354d26e722bd5f0ad64f3195e..68cd97448f7040a442aa220b218186ea05dccad0 100644 (file)
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -750,12 +750,7 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
    We choose to always emulate Windows behaviour as more useful for us so even
    if we have wprintf() we still must wrap it in a non trivial wxPrintf().
 
-   However, if we don't have any vswprintf() at all we don't need to redefine
-   anything as our own wxVsnprintf_() already behaves as needed.
 */
-#ifndef wxVsnprintf_
-    #undef wxNEED_PRINTF_CONVERSION
-#endif
 
 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
     /*
@@ -780,7 +775,11 @@ WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
 
 /* these 2 can be simply mapped to the versions with underscore at the end */
 /* if we don't have to do the conversion */
-#ifdef wxNEED_PRINTF_CONVERSION
+/*
+   However, if we don't have any vswprintf() at all we don't need to redefine
+   anything as our own wxVsnprintf_() already behaves as needed.
+*/
+#if defined(wxNEED_PRINTF_CONVERSION) && defined(wxVsnprintf_)
     int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3;
     int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list ap );
 #else