* src/symtab.h, src/symtab.c: line' is a new member of bucket'.

* src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
* src/output.c: Adjust.

src/symtab.h

@@ -42,6 +42,9 @@ typedef struct bucket
   struct bucket *link;
   struct bucket *next;
 
+  /* The line it was found in. */
+  short line;
+
   /* The key, name of the symbol. */
   char *tag;
   /* Its type. */