--- bc-1.06.orig/bc/bc.y
+++ bc-1.06/bc/bc.y
@@ -79,7 +79,7 @@
 /*     'scale', 'ibase', 'obase', 'auto', 'read' 	*/
 %token <i_value> Scale    Ibase    Obase    Auto  Read
 /*     'warranty', 'halt', 'last', 'continue', 'print', 'limits'   */
-%token <i_value> Warranty, Halt, Last, Continue, Print, Limits
+%token <i_value> Warranty Halt Last Continue Print Limits
 /*     'history' */
 %token <i_value> UNARY_MINUS HistoryVar
 
@@ -203,7 +203,7 @@
 			    {
 			      if ($4 & 2)
 				warn ("Comparison in first for expression");
-			      if ($4 >= 0)
+			      if ($4 <= 0)
 				generate ("p");
 			      $4 = next_label++;
 			      sprintf (genstr, "N%1d:", $4);
@@ -211,7 +211,7 @@
 			    }
 			  opt_expression ';'
 			    {
-			      if ($7 < 0) generate ("1");
+			      if ($7 &16 ) generate ("1");
 			      $7 = next_label++;
 			      sprintf (genstr, "B%1d:J%1d:", $7, break_label);
 			      generate (genstr);
@@ -424,7 +424,6 @@
 			      generate (genstr);
 			      $$ = 0;
 			    }
-			;
 			| expression AND 
 			    {
 			      warn("&& operator");