* data.c (store_symval_forwarding, set_internal):

* eval.c (specbind): Remove dead code.

src/ChangeLog

 2007-11-19  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+	* data.c (store_symval_forwarding, set_internal):
+	* eval.c (specbind): Remove dead code.
+
 	* coding.c (detect_coding, Fupdate_coding_systems_internal):
 	* fns.c (Fmd5): Use find_symbol_value rather than SYMBOL_VALUE
 	Since we do not want to see internal Lisp_*fwd objects here.

src/data.c

@@ -922,9 +922,11 @@ store_symval_forwarding (symbol, valcontents, newval, buf)
 	case Lisp_Misc_Intfwd:
 	  CHECK_NUMBER (newval);
 	  *XINTFWD (valcontents)->intvar = XINT (newval);
+	  /* This can never happen since intvar points to an EMACS_INT
+	     which is at least large enough to hold a Lisp_Object.
              if (*XINTFWD (valcontents)->intvar != XINT (newval))
 	       error ("Value out of range for variable `%s'",
-		   SDATA (SYMBOL_NAME (symbol)));
+	   	   SDATA (SYMBOL_NAME (symbol))); */
 	  break;
 
 	case Lisp_Misc_Boolfwd:
@@ -1237,8 +1239,7 @@ set_internal (symbol, newval, buf, bindflag)
 	  || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer)
 	  || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame
 	      && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))
-	  || (BUFFER_LOCAL_VALUEP (valcontents)
-	      && EQ (XCAR (current_alist_element),
+	  || (EQ (XCAR (current_alist_element),
 		  current_alist_element)))
 	{
 	  /* The currently loaded binding is not necessarily valid.

src/eval.c

@@ -3263,7 +3263,6 @@ void
 specbind (symbol, value)
      Lisp_Object symbol, value;
 {
-  Lisp_Object ovalue;
   Lisp_Object valcontents;
 
   CHECK_SYMBOL (symbol);
@@ -3283,9 +3282,7 @@ specbind (symbol, value)
     }
   else
     {
-      Lisp_Object valcontents;
-
-      ovalue = find_symbol_value (symbol);
+      Lisp_Object ovalue = find_symbol_value (symbol);
       specpdl_ptr->func = 0;
       specpdl_ptr->old_value = ovalue;
 
@@ -3330,9 +3327,13 @@ specbind (symbol, value)
 	specpdl_ptr->symbol = symbol;
 
       specpdl_ptr++;
+      /* We used to do
             if (BUFFER_OBJFWDP (ovalue) || KBOARD_OBJFWDP (ovalue))
 	      store_symval_forwarding (symbol, ovalue, value, NULL);
             else
+         but ovalue comes from find_symbol_value which should never return
+         such an internal value.  */
+      eassert (!(BUFFER_OBJFWDP (ovalue) || KBOARD_OBJFWDP (ovalue)));
       set_internal (symbol, value, 0, 1);
     }
 }