Cleanup spacing, fix check HAVE_WCSLEN, and use __BEGIN_DECL and __END_DECL to keep Xcode from wanting to indent all of the functions another level.

stepmania/src/archutils/Darwin/wchar.cpp

@@ -1,12 +1,12 @@
 #include <bits/c++config.h>
 #include <string>
+#include <sys/cdefs.h>
 
 // This is very annoying. The 10.2.8 SDK uses GLIBCPP but the 10.4u SDK uses GLIBCXX
 #define _GLIB_CHECK(x) (_GLIBCPP_ ## x || _GLIBCXX_ ## x)
 
-extern "C"
-{
-#if ! _GLIB_CHECK(HAVE_WCLEN)
+__BEGIN_DECLS
+#if ! _GLIB_CHECK(HAVE_WCSLEN)
 size_t wcslen( const wchar_t *ws )
 {
 	size_t n = 0;
@@ -60,10 +60,10 @@ wchar_t *wmemset( wchar_t *ws , wchar_t wc, size_t n )
 	return ws;
 }
 #endif
-}
+__END_DECLS
 
 /*
- * (c) 2003-2005 Steve Checkoway
+ * (c) 2003-2006 Steve Checkoway
  * All rights reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a