(svn r15892) -Codechange: [OSX] some type fixes so OpenTTD likes more of the 3.1.x Xcodes.

src/os/macosx/osx_stdafx.h

@@ -5,7 +5,18 @@
 #ifndef MACOS_STDAFX_H
 #define MACOS_STDAFX_H
 
+/* __LP64__ only exists in 10.5 and higher */
+#if defined(__APPLE__) && !defined(__LP64__)
+#	define __LP64__ 0
+#endif
+
+/* Check for mismatching 'architectures' */
+#if (__LP64__ && !defined(_SQ64)) || (!__LP64__ && defined(_SQ64))
+#	error "Compiling 64 bits without _SQ64 set! (or vice versa)"
+#endif
+
 #include <CoreServices/CoreServices.h>
+
 /* remove the variables that CoreServices defines, but we define ourselves too */
 #undef bool
 #undef false
@@ -16,4 +27,15 @@
 
 #define SL_ERROR OSX_SL_ERROR
 
+/* NSInteger and NSUInteger are part of 10.5 and higher. */
+#ifndef NSInteger
+#if __LP64__
+typedef long NSInteger;
+typedef unsigned long NSUInteger;
+#else
+typedef int NSInteger;
+typedef unsigned int NSUInteger;
+#endif /* __LP64__ */
+#endif /* NSInteger */
+
 #endif /* MACOS_STDAFX_H */