+/*
+ some compilers don't support iostream.h any longer, while some of theme
+ are not updated with <iostream> yet, so override the users setting here
+ in such case.
+ */
+#if defined(_MSC_VER) && (_MSC_VER >= 1310)
+# undef wxUSE_IOSTREAMH
+# define wxUSE_IOSTREAMH 0
+#elif defined(__DMC__) || defined(__WATCOMC__)
+# undef wxUSE_IOSTREAMH
+# define wxUSE_IOSTREAMH 1
+#elif defined(__MINGW32__)
+# undef wxUSE_IOSTREAMH
+# define wxUSE_IOSTREAMH 0
+#endif /* compilers with/without iostream.h */
+
+/*
+ old C++ headers (like <iostream.h>) declare classes in the global namespace
+ while the new, standard ones (like <iostream>) do it in std:: namespace,
+ unless it's an old gcc version.
+
+ using this macro allows constuctions like "wxSTD iostream" to work in
+ either case
+ */
+#if !wxUSE_IOSTREAMH && (!defined(__GNUC__) || ( __GNUC__ > 2 ) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
+# define wxSTD std::
+#else
+# define wxSTD
+#endif
+
+/* On OpenVMS with the most recent HP C++ compiler some function (i.e. wscanf)
+ * are only available in the std-namespace. (BUG???)
+ */
+#if defined( __VMS ) && (__DECCXX_VER >= 70100000) && !defined(__STD_CFRONT) && !defined( __NONAMESPACE_STD )
+# define wxVMS_USE_STD std::
+#else
+# define wxVMS_USE_STD
+#endif
+
+#ifdef __VMS
+#define XtDisplay XTDISPLAY
+#ifdef __WXMOTIF__
+#define XtParent XTPARENT
+#define XtScreen XTSCREEN
+#define XtWindow XTWINDOW
+#endif
+#endif
+
+/* Choose which method we will use for updating menus
+ * - in OnIdle, or when we receive a wxEVT_MENU_OPEN event.
+ * Presently, only Windows and GTK+ support wxEVT_MENU_OPEN.
+ */
+#ifndef wxUSE_IDLEMENUUPDATES
+# if (defined(__WXMSW__) || defined(__WXGTK__)) && !defined(__WXUNIVERSAL__)
+# define wxUSE_IDLEMENUUPDATES 0
+# else
+# define wxUSE_IDLEMENUUPDATES 1
+# endif
+#endif
+
+/*
+ * Define symbols that are not yet in
+ * configure or possibly some setup.h files.
+ * They will need to be added.
+ */
+
+#ifndef wxUSE_FILECONFIG
+# if wxUSE_CONFIG && wxUSE_TEXTFILE
+# define wxUSE_FILECONFIG 1
+# else
+# define wxUSE_FILECONFIG 0
+# endif
+#endif
+
+#ifndef wxUSE_HOTKEY
+# define wxUSE_HOTKEY 0
+#endif
+
+#if !defined(wxUSE_WXDIB) && defined(__WXMSW__)
+# define wxUSE_WXDIB 1
+#endif
+
+/*
+ We need AvailabilityMacros.h for ifdefing out things that don't exist on
+ OSX 10.2 and lower
+ FIXME: We need a better way to detect for 10.3 then including a system header
+*/
+#ifdef __DARWIN__
+ #include <AvailabilityMacros.h>
+#endif
+
+#if defined (__WXPALMOS__)
+#include "wx/palmos/missing.h"
+#endif // __WXPALMOS__
+
+#if !defined (__WXPALMOS5__)
+#define POSSEC_APPBASE
+#define POSSEC_ARCHIVE
+#define POSSEC_CLNTDATA
+#define POSSEC_CMDLINE
+#define POSSEC_CONFIG
+#define POSSEC_DATETIME
+#define POSSEC_DATETIME2
+#define POSSEC_DATSTRM
+#define POSSEC_DIRCMN
+#define POSSEC_DYNARRAY
+#define POSSEC_DYNLIB
+#define POSSEC_DYNLOAD
+#define POSSEC_ENCCONV
+#define POSSEC_EXTENDED
+#define POSSEC_FFILE
+#define POSSEC_FILE
+#define POSSEC_FILECONF
+#define POSSEC_FILEFN
+#endif // __WXPALMOS5__
+
+/*
+ Optionally supported C++ features.
+ */
+
+/*
+ RTTI: if it is disabled in build/msw/makefile.* then this symbol will
+ already be defined but it's also possible to do it from configure (with
+ g++) or by editing project files with MSVC so test for it here too.
+ */
+#ifndef wxNO_RTTI
+ /*
+ Only 4.3 defines __GXX_RTTI by default so its absence is not an
+ indication of disabled RTTI with the previous versions.
+ */
+# if wxCHECK_GCC_VERSION(4, 3)
+# ifndef __GXX_RTTI
+# define wxNO_RTTI
+# endif
+# elif defined(_MSC_VER)
+# ifndef _CPPRTTI
+# define wxNO_RTTI
+# endif
+# endif
+#endif // wxNO_RTTI
+
+#endif /* _WX_PLATFORM_H_ */