* src/output.c: Formatting changes.

* src/machine.h: Remove, leaving its contents in...
* src/system.h: here.
Include stdio.h.
Adjust all dependencies on stdio.h and machine.h.
* src/getargs.h: New file.
Let all `extern' declarations about getargs.c be replaced with
inclusion of `getargs.h'.
* src/Makefile.am (noinst_HEADERS): Adjust.

* tests/calc.m4 (yyin): Be initialized in main, not on the global
scope.
(yyerror): Returns void, not int.
* doc/bison.texinfo: Formatting changes.

src/reduce.c

@@ -29,17 +29,15 @@ Boston, MA 02111-1307, USA.  */
  * parser.
  */
 
-#include <stdio.h>
 #include "system.h"
+#include "getargs.h"
 #include "files.h"
 #include "gram.h"
-#include "machine.h"
 #include "alloc.h"
 #include "complain.h"
 
 
 extern char   **tags;		/* reader.c */
-extern int      verboseflag;	/* getargs.c */
 static int      statisticsflag;	/* XXXXXXX */
 extern int      fixed_outfiles;