Fix build with bison 1.75.

Reported by:	bento

cad/iverilog/files/patch-driver_parse.y

@@ -0,0 +1,10 @@
+--- driver/parse.y.orig	Mon Dec  2 00:00:22 2002
++++ driver/parse.y	Mon Dec  2 00:00:33 2002
+@@ -133,6 +133,7 @@
+ %%
+ 
+ start: section_list
++     ;
+ 
+ section_list
+ 	: section

cad/iverilog/files/patch-parse.y

@@ -0,0 +1,19 @@
+--- parse.y.orig	Tue Jan 22 22:35:17 2002
++++ parse.y	Sun Dec  1 23:59:12 2002
+@@ -831,7 +831,7 @@
+ 		  tmp->set_file(@1.text);
+ 		  tmp->set_lineno(@1.first_line);
+ 		  $$ = tmp;
+-		  delete $1
++		  delete $1;
+ 		}
+ 	| identifier '[' expression ']'
+ 		{ PEIdent*tmp = new PEIdent(*$1);
+@@ -1046,6 +1046,7 @@
+ 		  delete $3;
+ 		  $$ = tmp;
+ 		}
++		;
+ 
+ list_of_ports
+ 	: port_opt

cad/iverilog/files/patch-parse_misc.h

@@ -0,0 +1,12 @@
+--- parse_misc.h.orig	Sun Dec  1 23:51:26 2002
++++ parse_misc.h	Sun Dec  1 23:56:43 2002
+@@ -38,6 +38,9 @@
+       const char*text;
+ };
+ # define YYLTYPE vlltype
++#ifndef yylloc
++#define yylloc VLlloc
++#endif
+ extern YYLTYPE yylloc;
+ 
+ /*