$NetBSD$

Fix build with gcc4.5

--- mplex/lpcmstrm_in.cpp.orig	2011-01-24 10:42:48.023875210 +0000
+++ mplex/lpcmstrm_in.cpp
@@ -53,7 +53,7 @@ LPCMStream::LPCMStream(IBitStream &ibs,
 
 bool LPCMStream::Probe(IBitStream &bs )
 {
-    char *last_dot = strrchr( bs.StreamName(), '.' );
+    const char *last_dot = strrchr( bs.StreamName(), '.' );
     return 
         last_dot != NULL 
         && strcmp( last_dot+1, "lpcm") == 0;
