Allow building with backtrace symbols.

src/archutils/Unix/BacktraceNames.h

@@ -6,7 +6,7 @@ struct BacktraceNames
 	RString Symbol, File;
 	intptr_t Address;
 	int Offset;
-	void FromAddr( const void *p );
+	void FromAddr( void * const p );
 	void FromString( RString str );
 	void Demangle();
 	RString Format() const;
@@ -18,7 +18,7 @@ struct BacktraceNames
 /*
  * (c) 2003-2004 Glenn Maynard
  * All rights reserved.
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
@@ -28,7 +28,7 @@ struct BacktraceNames
  * copyright notice(s) and this permission notice appear in all copies of
  * the Software and that both the above copyright notice(s) and this
  * permission notice appear in supporting documentation.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF