update gsm codec based on codecs from open h323.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@171 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/codec/gsm/src/code.c

@@ -1,17 +1,18 @@
 /*
+ * code.c
+ *
  * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
  * Universitaet Berlin.  See the accompanying file "COPYRIGHT" for
  * details.  THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
  */
 
-/* $Header$ */
 
 #include	"config.h"
 
 #ifdef	HAS_STRING_H
 #include	<string.h>
 #else
-#	include "proto.h"
+#include "proto.h"
 	extern char	* memcpy P((char *, char *, int));
 #endif
 
@@ -85,8 +86,9 @@ void Gsm_Coder P8((S,s,LARc,Nc,bc,Mc,xmaxc,xMc),
 		 */
 
 		{ register int i;
+		  register longword ltmp;
 		  for (i = 0; i <= 39; i++)
-			dp[ i ] = GSM_ADD( e[5 + i], dpp[i] );
+			dp[ i ] = (word) GSM_ADD( e[5 + i], dpp[i] );
 		}
 		dp  += 40;
 		dpp += 40;