+/* also the 32/64 bit universal builds must be handled accordingly */
+#ifdef __DARWIN__
+# ifdef __LP64__
+# undef SIZEOF_VOID_P
+# undef SIZEOF_LONG
+# undef SIZEOF_SIZE_T
+# define SIZEOF_VOID_P 8
+# define SIZEOF_LONG 8
+# define SIZEOF_SIZE_T 8
+# else
+# undef SIZEOF_VOID_P
+# undef SIZEOF_LONG
+# undef SIZEOF_SIZE_T
+# define SIZEOF_VOID_P 4
+# define SIZEOF_LONG 4
+# define SIZEOF_SIZE_T 4
+# endif
+#endif
+
+/*
+ Define various OS X symbols before including wx/chkconf.h which uses them.
+
+ __WXOSX_MAC__ means Mac OS X, non embedded
+ __WXOSX_IPHONE__ means OS X iPhone
+ */
+
+/*
+ Normally all of __WXOSX_XXX__, __WXOSX__ and __WXMAC__ are defined by
+ configure but ensure that we also define them if configure was not used for
+ whatever reason.
+
+ The primary symbol remains __WXOSX_XXX__ one, __WXOSX__ exists to allow
+ checking for any OS X port (Carbon and Cocoa) and __WXMAC__ is an old name
+ for it.
+ */
+#if defined(__WXOSX_CARBON__) || defined(__WXOSX_COCOA__) || defined(__WXOSX_IPHONE__)
+# ifndef __WXOSX__
+# define __WXOSX__ 1
+# endif
+# ifndef __WXMAC__
+# define __WXMAC__ 1
+# endif
+#endif
+
+#ifdef __WXOSX__
+/* setup precise defines according to sdk used */
+# include <TargetConditionals.h>
+# if defined(__WXOSX_IPHONE__)
+# if !( defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE )
+# error "incorrect SDK for an iPhone build"
+# endif
+# else
+# if wxUSE_GUI && !(defined(__WXOSX_CARBON__) || defined(__WXOSX_COCOA__))
+# error "one of __WXOSX_IPHONE__, __WXOSX_CARBON__ or __WXOSX_COCOA__ must be defined for the GUI build"
+# endif
+# if !( defined(TARGET_OS_MAC) && TARGET_OS_MAC )
+# error "incorrect SDK for a Mac OS X build"
+# endif
+# define __WXOSX_MAC__ 1
+# endif
+#endif
+
+#ifdef __WXOSX_MAC__
+# if defined(__MACH__)
+# include <AvailabilityMacros.h>
+# ifndef MAC_OS_X_VERSION_10_4
+# define MAC_OS_X_VERSION_10_4 1040
+# endif
+# ifndef MAC_OS_X_VERSION_10_5
+# define MAC_OS_X_VERSION_10_5 1050
+# endif
+# ifndef MAC_OS_X_VERSION_10_6
+# define MAC_OS_X_VERSION_10_6 1060
+# endif
+# ifndef MAC_OS_X_VERSION_10_7
+# define MAC_OS_X_VERSION_10_7 1070
+# endif
+# ifndef MAC_OS_X_VERSION_10_8
+# define MAC_OS_X_VERSION_10_8 1080
+# endif
+# else
+# error "only mach-o configurations are supported"
+# endif
+#endif
+
+/*
+ __WXOSX_OR_COCOA__ is a common define to wxOSX (Carbon or Cocoa) and wxCocoa ports under OS X.
+
+ DO NOT use this define in base library code. Although wxMac has its own
+ private base library (and thus __WXOSX_OR_COCOA__,__WXMAC__ and related defines are
+ valid there), wxCocoa shares its library with other ports like wxGTK and wxX11.
+
+ To keep wx authors from screwing this up, only enable __WXOSX_OR_COCOA__ for wxCocoa when
+ not compiling the base library. We determine this by first checking if
+ wxUSE_BASE is not defined. If it is not defined, then we're not buildling
+ the base library, and possibly not building wx at all (but actually building
+ user code that's using wx). If it is defined then we must check to make sure
+ it is not true. If it is true, we're building base.
+
+ If you want it in the common darwin base library then use __DARWIN__. You
+ can use any Darwin-available libraries like CoreFoundation but please avoid
+ using OS X libraries like Carbon or CoreServices.
+
+ */
+#if defined(__WXOSX__) || (defined(__WXCOCOA__) && (!defined(wxUSE_BASE) || !wxUSE_BASE))
+# define __WXOSX_OR_COCOA__ 1
+#endif