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Re: Small patch for chdir-long.m4 and fpending.m4
From: |
Paul Eggert |
Subject: |
Re: Small patch for chdir-long.m4 and fpending.m4 |
Date: |
Sun, 30 Oct 2005 15:09:23 -0800 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
Thanks for the bug report archived in
<http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00326.html>.
I installed this slightly-different patch into coreutils and gnulib:
2005-10-30 Paul Eggert <address@hidden>
* m4/chdir-long.m4 (gl_FUNC_CHDIR_LONG): Revamp wording and local
variables to suggest the intended function of the PATH_MAX check.
2005-10-30 Kean Johnston <address@hidden>
Trivial changes to support SCO systems.
* m4/chdir-long.m4 (gl_FUNC_CHDIR_LONG): Check for MAXPATHLEN as well
as PATH_MAX.
* m4/fpending.m4 (gl_FUNC_FPENDING): Correct check for SCO systems,
where __ptr is null when no I/O is pending.
--- m4/chdir-long.m4 2 Oct 2005 22:38:45 -0000 1.3
+++ m4/chdir-long.m4 30 Oct 2005 23:06:27 -0000
@@ -1,4 +1,4 @@
-#serial 6
+#serial 7
# Use Gnulib's robust chdir function.
# It can handle arbitrarily long directory names, which means
@@ -16,18 +16,18 @@ dnl with or without modifications, as lo
AC_DEFUN([gl_FUNC_CHDIR_LONG],
[
AC_LIBSOURCES([chdir-long.c, chdir-long.h])
- AC_CACHE_CHECK([whether this system has a definition of PATH_MAX],
- gl_have_path_max_definition,
- [AC_EGREP_CPP([have_path_max_definition],
+ AC_CACHE_CHECK([whether this system has an arbitrary file name length limit],
+ gl_have_arbitrary_file_name_length_limit,
+ [AC_EGREP_CPP([have_arbitrary_file_name_length_limit],
[#include <unistd.h>
#include <limits.h>
-#ifdef PATH_MAX
-have_path_max_definition
+#if defined PATH_MAX || defined MAXPATHLEN
+have_arbitrary_file_name_length_limit
#endif],
- gl_have_path_max_definition=yes,
- gl_have_path_max_definition=no)])
+ gl_have_arbitrary_file_name_length_limit=yes,
+ gl_have_arbitrary_file_name_length_limit=no)])
- if test $gl_have_path_max_definition = yes; then
+ if test $gl_have_arbitrary_file_name_length_limit = yes; then
AC_LIBOBJ([chdir-long])
gl_PREREQ_CHDIR_LONG
fi
--- m4/fpending.m4 21 Mar 2005 22:06:27 -0000 1.12
+++ m4/fpending.m4 30 Oct 2005 23:06:27 -0000
@@ -1,4 +1,4 @@
-#serial 6
+#serial 7
# Copyright (C) 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
@@ -42,7 +42,7 @@ AC_DEFUN([gl_FUNC_FPENDING],
'fp->_p - fp->_bf._base' \
\
'# SCO, Unixware' \
- 'fp->__ptr - fp->__base' \
+ '(fp->__ptr ? fp->__ptr - fp->__base : 0)' \
\
'# old glibc?' \
'fp->__bufp - fp->__buffer' \
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