Fix detection of VCMI_APPLE

Global.h

@@ -61,7 +61,7 @@ static_assert(sizeof(bool) == 1, "Bool needs to be 1 byte in size.");
 #  define VCMI_UNIX
 #  define VCMI_XDG
 #  define VCMI_FREEBSD
-#elif defined(__GNU__) || defined(__gnu_hurd__) || (defined(__MACH__) && !defined(__APPLE))
+#elif defined(__GNU__) || defined(__gnu_hurd__) || (defined(__MACH__) && !defined(__APPLE__))
 #  define VCMI_UNIX
 #  define VCMI_XDG
 #  define VCMI_HURD