[BZ #3044]

2006-08-14  Eric Blake
<ebb9@byu.net>

	[BZ #3044]
	* misc/error.h: Assume C89 or better.
	* misc/error.c: Likewise.

2 files changed, 15 insertions, 117 deletions

diff --git a/misc/error.c b/misc/error.c
index aca435d..85d1cff 100644
--- a/misc/error.c
+++ b/misc/error.c
@@ -23,35 +23,19 @@
 # include <config.h>
 #endif
 
+#include <stdarg.h>
 #include <stdio.h>
-#include <libintl.h>
+#include <stdlib.h>
+#include <string.h>
+
 #ifdef _LIBC
+# include <libintl.h>
 # include <stdbool.h>
 # include <stdint.h>
 # include <wchar.h>
 # define mbsrtowcs __mbsrtowcs
 #endif
 
-#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC
-# if __STDC__
-#  include <stdarg.h>
-#  define VA_START(args, lastarg) va_start(args, lastarg)
-# else
-#  include <varargs.h>
-#  define VA_START(args, lastarg) va_start(args)
-# endif
-#else
-# define va_alist a1, a2, a3, a4, a5, a6, a7, a8
-# define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
-#endif
-
-#if STDC_HEADERS || _LIBC
-# include <stdlib.h>
-# include <string.h>
-#else
-void exit ();
-#endif
-
 #include "error.h"
 
 #ifndef _
@@ -61,11 +45,7 @@ void exit ();
 /* If NULL, error will flush stdout, then print on stderr the program
    name, a colon and a space.  Otherwise, error will call this
    function without parameters instead.  */
-void (*error_print_progname) (
-#if __STDC__ - 0
-			      void
-#endif
-			      );
+void (*error_print_progname) (void);
 
 /* This variable is incremented each time `error' is called.  */
 unsigned int error_message_count;
@@ -111,27 +91,6 @@ extern char *program_name;
 
 # if HAVE_STRERROR_R || defined strerror_r
 #  define __strerror_r strerror_r
-# else
-#  if HAVE_STRERROR
-#   ifndef HAVE_DECL_STRERROR
-"this configure-time declaration test was not run"
-#   endif
-#   if !HAVE_DECL_STRERROR
-char *strerror ();
-#   endif
-#  else
-static char *
-private_strerror (int errnum)
-{
-  extern char *sys_errlist[];
-  extern int sys_nerr;
-
-  if (errnum > 0 && errnum <= sys_nerr)
-    return _(sys_errlist[errnum]);
-  return _("Unknown system error");
-}
-#   define strerror private_strerror
-#  endif /* HAVE_STRERROR */
 # endif	/* HAVE_STRERROR_R || defined strerror_r */
 #endif	/* not _LIBC */
 
@@ -166,15 +125,13 @@ print_errno_message (int errnum)
 #endif
 }
 
-#ifdef VA_START
 static void
 error_tail (int status, int errnum, const char *message, va_list args)
 {
-# if HAVE_VPRINTF || _LIBC
-#  if _LIBC
+#if _LIBC
   if (_IO_fwide (stderr, 0) > 0)
     {
-#   define ALLOCA_LIMIT	2000
+# define ALLOCA_LIMIT 2000
       size_t len = strlen (message) + 1;
       wchar_t *wmessage = NULL;
       mbstate_t st;
@@ -237,47 +194,32 @@ error_tail (int status, int errnum, const char *message, va_list args)
 	free (wmessage);
     }
   else
-#  endif
+#endif
     vfprintf (stderr, message, args);
-# else
-  _doprnt (message, args, stderr);
-# endif
   va_end (args);
 
   ++error_message_count;
   if (errnum)
     print_errno_message (errnum);
-# if _LIBC
+#if _LIBC
   __fxprintf (NULL, "\n");
-# else
+#else
   putc ('\n', stderr);
-# endif
+#endif
   fflush (stderr);
   if (status)
     exit (status);
 }
-#endif
 
 
 /* Print the program name and error message MESSAGE, which is a printf-style
    format string with optional args.
    If ERRNUM is nonzero, print its corresponding system error message.
    Exit with status STATUS if it is nonzero.  */
-/* VARARGS */
 void
-#if defined VA_START && __STDC__
 error (int status, int errnum, const char *message, ...)
-#else
-error (status, errnum, message, va_alist)
-     int status;
-     int errnum;
-     char *message;
-     va_dcl
-#endif
 {
-#ifdef VA_START
   va_list args;
-#endif
 
 #if defined _LIBC && defined __libc_ptf_call
   /* We do not want this call to be cut short by a thread
@@ -302,20 +244,8 @@ error (status, errnum, message, va_alist)
 #endif
     }
 
-#ifdef VA_START
-  VA_START (args, message);
+  va_start (args, message);
   error_tail (status, errnum, message, args);
-#else
-  fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  ++error_message_count;
-  if (errnum)
-    print_errno_message (errnum);
-  putc ('\n', stderr);
-  fflush (stderr);
-  if (status)
-    exit (status);
-#endif
 
 #ifdef _LIBC
   _IO_funlockfile (stderr);
@@ -330,22 +260,10 @@ error (status, errnum, message, va_alist)
 int error_one_per_line;
 
 void
-#if defined VA_START && __STDC__
 error_at_line (int status, int errnum, const char *file_name,
 	       unsigned int line_number, const char *message, ...)
-#else
-error_at_line (status, errnum, file_name, line_number, message, va_alist)
-     int status;
-     int errnum;
-     const char *file_name;
-     unsigned int line_number;
-     char *message;
-     va_dcl
-#endif
 {
-#ifdef VA_START
   va_list args;
-#endif
 
   if (error_one_per_line)
     {
@@ -393,20 +311,8 @@ error_at_line (status, errnum, file_name, line_number, message, va_alist)
 	   file_name, line_number);
 #endif
 
-#ifdef VA_START
-  VA_START (args, message);
+  va_start (args, message);
   error_tail (status, errnum, message, args);
-#else
-  fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  ++error_message_count;
-  if (errnum)
-    print_errno_message (errnum);
-  putc ('\n', stderr);
-  fflush (stderr);
-  if (status)
-    exit (status);
-#endif
 
 #ifdef _LIBC
   _IO_funlockfile (stderr);
diff --git a/misc/error.h b/misc/error.h
index 3638bc6..f25005b 100644
--- a/misc/error.h
+++ b/misc/error.h
@@ -1,5 +1,5 @@
 /* Declaration for error-reporting function
-   Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 2003, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -37,8 +37,6 @@
 extern "C" {
 #endif
 
-#if defined __STDC__ && __STDC__
-
 /* Print a message with `fprintf (stderr, FORMAT, ...)';
    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
    If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
@@ -55,12 +53,6 @@ extern void error_at_line (int __status, int __errnum, const char *__fname,
    function without parameters instead.  */
 extern void (*error_print_progname) (void);
 
-#else
-void error ();
-void error_at_line ();
-extern void (*error_print_progname) ();
-#endif
-
 /* This variable is incremented each time `error' is called.  */
 extern unsigned int error_message_count;