diff --git a/ChangeLog b/ChangeLog
index 37d05aca9..77a5ed69f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-11-16  Robert Larice
+ * src/frontend/parse-bison.c ,
+ * src/spicelib/parser/inpptree-parser.c :
+    regenerate bison output files
+
 2010-11-16  Robert Larice
  * src/frontend/parse-bison.y ,
  * src/spicelib/parser/inpptree-parser.y ,
diff --git a/src/frontend/parse-bison.c b/src/frontend/parse-bison.c
index 4c463704a..ca2865a59 100644
--- a/src/frontend/parse-bison.c
+++ b/src/frontend/parse-bison.c
@@ -131,7 +131,7 @@
   # define __func__ __FUNCTION__ /* __func__ is C99, but MSC can't */
   #endif
 
-  #define U(x)  (void)x
+
 
 
 /* Enabling traces.  */
@@ -1867,7 +1867,10 @@ yyreturn:
 static void
 PPerror (YYLTYPE *locp, char **line, struct pnode **retval, char const *s)
 {
-  U(line); U(retval);
+  IGNORE(locp);
+  IGNORE(line);
+  IGNORE(retval);
+
   fprintf (stderr, "%s: %s\n", __func__, s);
 }
 
diff --git a/src/spicelib/parser/inpptree-parser.c b/src/spicelib/parser/inpptree-parser.c
index 4eb320345..cede2753c 100644
--- a/src/spicelib/parser/inpptree-parser.c
+++ b/src/spicelib/parser/inpptree-parser.c
@@ -119,7 +119,7 @@
   # define __func__ __FUNCTION__ /* __func__ is C99, but MSC can't */
   #endif
 
-  #define U(x)  (void)x
+
 
 
 /* Enabling traces.  */
@@ -1761,7 +1761,10 @@ yyreturn:
 static void
 PTerror (char **line, struct INPparseNode **retval, void *ckt, char const *s)
 {
-  U(line); U(retval); U(ckt);
+  IGNORE(line);
+  IGNORE(retval);
+  IGNORE(ckt);
+
   fprintf (stderr, "%s: %s\n", __func__, s);
 }