* getargs.c (skeleton): New variable.

(longopts): --skeleton is a new option.
(shortopts, getargs): -S is a new option.
* getargs.h: Declare skeleton.
* output.c (output_parser): Use it.

doc/bison.info-4

@@ -846,6 +846,11 @@ Operations modes:
 
 Tuning the parser:
 
+`-S FILE'
+`--skeleton=FILE'
+     Specify the skeleton to use.  You probably don't need this option
+     unless you are developing Bison.
+
 `-t'
 `--debug'
      Output a definition of the macro `YYDEBUG' into the parser file, so