2002-07-31 Jeff Bailey <jbailey@gnu.org>

        * libio/stdio.h (sys_errlist, sys_nerr, _sys_errlist, _sys_nerr):
	Declarations moved to <bits/sys_errlist.h>.  Include that file.
        * libio/Makefile (headers): Add bits/sys_errlist.h to the list.
        * sysdeps/generic/bits/sys_errlist.h: New file.  This does *not*
        declare sys_errlist and sys_nerr.
        * sysdeps/unix/sysv/linux/bits/sys_errlist.h: New file.  Does
	provide declarations.

6 files changed, 100 insertions, 14 deletions

diff --git a/ChangeLog b/ChangeLog
index 97a6679e77..9ac393090e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2002-07-31  Jeff Bailey  <jbailey@gnu.org>
+
+        * libio/stdio.h (sys_errlist, sys_nerr, _sys_errlist, _sys_nerr):
+	Declarations moved to <bits/sys_errlist.h>.  Include that file.
+        * libio/Makefile (headers): Add bits/sys_errlist.h to the list.
+        * sysdeps/generic/bits/sys_errlist.h: New file.  This does *not*
+        declare sys_errlist and sys_nerr.
+        * sysdeps/unix/sysv/linux/bits/sys_errlist.h: New file.  Does
+	provide declarations.
+
 2002-07-31  Roland McGrath  <roland@frob.com>
 
 	* elf/rtld.c (dl_main): Fix typo in error message.
diff --git a/bits/sys_errlist.h b/bits/sys_errlist.h
new file mode 100644
index 0000000000..ab839b7073
--- /dev/null
+++ b/bits/sys_errlist.h
@@ -0,0 +1,24 @@
+/* Declare sys_errlist and sys_nerr, or don't.  Don't version.
+   Copyright (C) 2002 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _STDIO_H
+# error "Never include <bits/sys_errlist.h> directly; use <stdio.h> instead."
+#endif
+
+/* sys_errlist and sys_nerr are deprecated.  Use strerror instead.  */
diff --git a/libio/Makefile b/libio/Makefile
index 132634608f..f5e69e3e14 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc.
+# Copyright (C) 1995,96,97,98,99,2000,01,02 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
@@ -21,7 +21,8 @@
 #
 subdir	:= libio
 
-headers	:= stdio.h libio.h _G_config.h bits/stdio.h bits/stdio-lock.h
+headers	:= stdio.h libio.h _G_config.h bits/stdio.h bits/stdio-lock.h \
+	   bits/sys_errlist.h
 
 routines	:=							      \
 	filedoalloc iofclose iofdopen iofflush iofgetpos iofgets iofopen      \
diff --git a/libio/stdio.h b/libio/stdio.h
index bcdf64d72e..10bd6e5e88 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -1,6 +1,5 @@
 /* Define ISO C stdio on top of C++ iostreams.
-   Copyright (C) 1991, 1994-1999, 2000, 2001, 2002
-   Free Software Foundation, Inc.
+   Copyright (C) 1991,1994-1999,2000,01,02 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
@@ -546,16 +545,11 @@ extern int ferror_unlocked (FILE *__stream) __THROW;
 /* Print a message describing the meaning of the value of errno.  */
 extern void perror (__const char *__s) __THROW;
 
-/* These variables normally should not be used directly.  The `strerror'
-   function provides all the needed functionality.  */
-#ifdef	__USE_BSD
-extern int sys_nerr;
-extern __const char *__const sys_errlist[];
-#endif
-#ifdef	__USE_GNU
-extern int _sys_nerr;
-extern __const char *__const _sys_errlist[];
-#endif
+/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
+   are available on this system.  Even if available, these variables
+   should not be used directly.  The `strerror' function provides
+   all the necessary functionality.  */
+#include <bits/sys_errlist.h>
 
 
 #ifdef	__USE_POSIX
diff --git a/sysdeps/generic/bits/sys_errlist.h b/sysdeps/generic/bits/sys_errlist.h
new file mode 100644
index 0000000000..ab839b7073
--- /dev/null
+++ b/sysdeps/generic/bits/sys_errlist.h
@@ -0,0 +1,24 @@
+/* Declare sys_errlist and sys_nerr, or don't.  Don't version.
+   Copyright (C) 2002 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _STDIO_H
+# error "Never include <bits/sys_errlist.h> directly; use <stdio.h> instead."
+#endif
+
+/* sys_errlist and sys_nerr are deprecated.  Use strerror instead.  */
diff --git a/sysdeps/unix/sysv/linux/bits/sys_errlist.h b/sysdeps/unix/sysv/linux/bits/sys_errlist.h
new file mode 100644
index 0000000000..ee556e8ec7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/sys_errlist.h
@@ -0,0 +1,33 @@
+/* Declare sys_errlist and sys_nerr, or don't.  Compatibility (do) version.
+   Copyright (C) 2002 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _STDIO_H
+# error "Never include <bits/sys_errlist.h> directly; use <stdio.h> instead."
+#endif
+
+/* sys_errlist and sys_nerr are deprecated.  Use strerror instead.  */
+
+#ifdef  __USE_BSD
+extern int sys_nerr;
+extern __const char *__const sys_errlist[];
+#endif
+#ifdef  __USE_GNU
+extern int _sys_nerr;
+extern __const char *__const _sys_errlist[];
+#endif