diff -up mjpegtools-1.9.0/mplex/lpcmstrm_in.cpp~ mjpegtools-1.9.0/mplex/lpcmstrm_in.cpp
--- mjpegtools-1.9.0/mplex/lpcmstrm_in.cpp~	2005-10-13 18:43:10.000000000 +0200
+++ mjpegtools-1.9.0/mplex/lpcmstrm_in.cpp	2009-04-15 12:22:29.000000000 +0200
@@ -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;