+// Define helper macros allowing to insert small snippets of code to be
+// compiled for high enough OS X version only: this shouldn't be abused for
+// anything big but it's handy for e.g. specifying OS X 10.6-only protocols in
+// the Objective C classes declarations when they're not supported under the
+// previous versions
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+ #define wxOSX_10_6_AND_LATER(x) x
+#else
+ #define wxOSX_10_6_AND_LATER(x)
+#endif
+
+// platform specific Clang analyzer support
+#ifndef NS_RETURNS_RETAINED
+# if WX_HAS_CLANG_FEATURE(attribute_ns_returns_retained)
+# define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
+# else
+# define NS_RETURNS_RETAINED
+# endif
+#endif
+
+#ifndef CF_RETURNS_RETAINED
+# if WX_HAS_CLANG_FEATURE(attribute_cf_returns_retained)
+# define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
+# else
+# define CF_RETURNS_RETAINED
+# endif
+#endif
+
+#if ( !wxUSE_GUI && !wxOSX_USE_IPHONE ) || wxOSX_USE_COCOA_OR_CARBON
+
+// Carbon functions are currently still used in wxOSX/Cocoa too (including
+// wxBase part of it).
+#include <Carbon/Carbon.h>