Changed checks to avoid "pointless comparison" warnings.

Change preprocessor code to not use WCHAR_MAX on OSL (Tru64) systems (it's definition is not preprocessor friendly on gcc).


[SVN r28892]

libs/regex

@@ -1 +1 @@
-Subproject commit a48a6de286e670e1c19c6328b232064a4c559910
+Subproject commit 0ae6fb5796d4550324a575b24d53b819389bd459