Update gnulib files.

33 files changed, 92 insertions, 64 deletions

diff --git a/gl/m4/00gnulib.m4 b/gl/m4/00gnulib.m4
index 301469b..7feed46 100644
--- a/gl/m4/00gnulib.m4
+++ b/gl/m4/00gnulib.m4
@@ -1,5 +1,5 @@
 # 00gnulib.m4 serial 2
-dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/asm-underscore.m4 b/gl/m4/asm-underscore.m4
index 1736cc4..15c89cc 100644
--- a/gl/m4/asm-underscore.m4
+++ b/gl/m4/asm-underscore.m4
@@ -1,5 +1,5 @@
 # asm-underscore.m4 serial 1
-dnl Copyright (C) 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/autobuild.m4 b/gl/m4/autobuild.m4
index 93ccb54..04971d4 100644
--- a/gl/m4/autobuild.m4
+++ b/gl/m4/autobuild.m4
@@ -1,6 +1,5 @@
 # autobuild.m4 serial 7
-dnl Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
-dnl Inc.
+dnl Copyright (C) 2004, 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4
index 7d9458a..1330503 100644
--- a/gl/m4/extensions.m4
+++ b/gl/m4/extensions.m4
@@ -1,7 +1,7 @@
 # serial 9  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
-# Copyright (C) 2003, 2006-2010 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2006-2011 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/ftello.m4 b/gl/m4/ftello.m4
index 33201a0..599f8f2 100644
--- a/gl/m4/ftello.m4
+++ b/gl/m4/ftello.m4
@@ -1,5 +1,5 @@
-# ftello.m4 serial 8
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+# ftello.m4 serial 9
+dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -13,6 +13,11 @@ AC_DEFUN([gl_FUNC_FTELLO],
   dnl Persuade glibc <stdio.h> to declare ftello().
   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
+  AC_CHECK_DECLS_ONCE([ftello])
+  if test $ac_cv_have_decl_ftello = no; then
+    HAVE_DECL_FTELLO=0
+  fi
+
   AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello],
     [
       AC_LINK_IFELSE(
diff --git a/gl/m4/getopt.m4 b/gl/m4/getopt.m4
index d05e9d9..793ab78 100644
--- a/gl/m4/getopt.m4
+++ b/gl/m4/getopt.m4
@@ -1,5 +1,5 @@
-# getopt.m4 serial 31
-dnl Copyright (C) 2002-2006, 2008-2010 Free Software Foundation, Inc.
+# getopt.m4 serial 32
+dnl Copyright (C) 2002-2006, 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -231,6 +231,7 @@ dnl is ambiguous with environment values that contain newlines.
                            #include <stddef.h>
                            #include <string.h>
            ]], [[
+             int result = 0;
              /* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw,
                 and fails on MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
                 OSF/1 5.1, Solaris 10.  */
@@ -241,7 +242,7 @@ dnl is ambiguous with environment values that contain newlines.
                myargv[2] = 0;
                opterr = 0;
                if (getopt (2, myargv, "+a") != '?')
-                 return 1;
+                 result |= 1;
              }
              /* This code succeeds on glibc 2.8, mingw,
                 and fails on MacOS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
@@ -251,33 +252,33 @@ dnl is ambiguous with environment values that contain newlines.
 
                optind = 1;
                if (getopt (4, argv, "p::") != 'p')
-                 return 2;
-               if (optarg != NULL)
-                 return 3;
-               if (getopt (4, argv, "p::") != -1)
-                 return 4;
-               if (optind != 2)
-                 return 5;
+                 result |= 2;
+               else if (optarg != NULL)
+                 result |= 4;
+               else if (getopt (4, argv, "p::") != -1)
+                 result |= 6;
+               else if (optind != 2)
+                 result |= 8;
              }
              /* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0.  */
              {
                char *argv[] = { "program", "foo", "-p", NULL };
                optind = 0;
                if (getopt (3, argv, "-p") != 1)
-                 return 6;
-               if (getopt (3, argv, "-p") != 'p')
-                 return 7;
+                 result |= 16;
+               else if (getopt (3, argv, "-p") != 'p')
+                 result |= 32;
              }
              /* This code fails on glibc 2.11.  */
              {
                char *argv[] = { "program", "-b", "-a", NULL };
                optind = opterr = 0;
                if (getopt (3, argv, "+:a:b") != 'b')
-                 return 8;
-               if (getopt (3, argv, "+:a:b") != ':')
-                 return 9;
+                 result |= 64;
+               else if (getopt (3, argv, "+:a:b") != ':')
+                 result |= 64;
              }
-             return 0;
+             return result;
            ]])],
         [gl_cv_func_getopt_gnu=yes],
         [gl_cv_func_getopt_gnu=no],
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index bce314a..6486ac9 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2010 Free Software Foundation, Inc.
+# Copyright (C) 2002-2011 Free Software Foundation, Inc.
 #
 # This file is free software, distributed under the terms of the GNU
 # General Public License.  As a special exception to the GNU General
diff --git a/gl/m4/gnulib-common.m4 b/gl/m4/gnulib-common.m4
index d0c8b66..1a1794c 100644
--- a/gl/m4/gnulib-common.m4
+++ b/gl/m4/gnulib-common.m4
@@ -1,5 +1,5 @@
 # gnulib-common.m4 serial 21
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index b15340e..0820aa9 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -1,5 +1,5 @@
 # DO NOT EDIT! GENERATED AUTOMATICALLY!
-# Copyright (C) 2002-2010 Free Software Foundation, Inc.
+# Copyright (C) 2002-2011 Free Software Foundation, Inc.
 #
 # This file is free software, distributed under the terms of the GNU
 # General Public License.  As a special exception to the GNU General
diff --git a/gl/m4/gnulib-tool.m4 b/gl/m4/gnulib-tool.m4
index 69e7733..ed41e9d 100644
--- a/gl/m4/gnulib-tool.m4
+++ b/gl/m4/gnulib-tool.m4
@@ -1,5 +1,5 @@
 # gnulib-tool.m4 serial 2
-dnl Copyright (C) 2004-2005, 2009-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2004-2005, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/include_next.m4 b/gl/m4/include_next.m4
index e37eb05..ed05e1d 100644
--- a/gl/m4/include_next.m4
+++ b/gl/m4/include_next.m4
@@ -1,5 +1,5 @@
 # include_next.m4 serial 16
-dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/longlong.m4 b/gl/m4/longlong.m4
index cca3c1a..a4d95aa 100644
--- a/gl/m4/longlong.m4
+++ b/gl/m4/longlong.m4
@@ -1,5 +1,5 @@
 # longlong.m4 serial 14
-dnl Copyright (C) 1999-2007, 2009-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 1999-2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/lseek.m4 b/gl/m4/lseek.m4
index b0612c7..f6452f6 100644
--- a/gl/m4/lseek.m4
+++ b/gl/m4/lseek.m4
@@ -1,5 +1,5 @@
 # lseek.m4 serial 6
-dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4
index 7a74925..8094444 100644
--- a/gl/m4/malloc.m4
+++ b/gl/m4/malloc.m4
@@ -1,5 +1,5 @@
 # malloc.m4 serial 12
-dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/manywarnings.m4 b/gl/m4/manywarnings.m4
index 844a9ba..e928821 100644
--- a/gl/m4/manywarnings.m4
+++ b/gl/m4/manywarnings.m4
@@ -1,5 +1,5 @@
 # manywarnings.m4 serial 1
-dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/multiarch.m4 b/gl/m4/multiarch.m4
index 389bd2b..47e3e63 100644
--- a/gl/m4/multiarch.m4
+++ b/gl/m4/multiarch.m4
@@ -1,5 +1,5 @@
 # multiarch.m4 serial 5
-dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/read-file.m4 b/gl/m4/read-file.m4
index 35a3a48..60d0360 100644
--- a/gl/m4/read-file.m4
+++ b/gl/m4/read-file.m4
@@ -1,6 +1,5 @@
 # read-file.m4 serial 2
-dnl Copyright (C) 2002, 2003, 2004, 2005, 2006, 2009, 2010 Free Software
-dnl Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/realloc.m4 b/gl/m4/realloc.m4
index 01c1234..a403d9f 100644
--- a/gl/m4/realloc.m4
+++ b/gl/m4/realloc.m4
@@ -1,5 +1,5 @@
 # realloc.m4 serial 11
-dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/stdarg.m4 b/gl/m4/stdarg.m4
index 8a62f2e..02d73be 100644
--- a/gl/m4/stdarg.m4
+++ b/gl/m4/stdarg.m4
@@ -1,5 +1,5 @@
 # stdarg.m4 serial 4
-dnl Copyright (C) 2006, 2008-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/stddef_h.m4 b/gl/m4/stddef_h.m4
index c3ae569..3a5ecc5 100644
--- a/gl/m4/stddef_h.m4
+++ b/gl/m4/stddef_h.m4
@@ -1,6 +1,6 @@
 dnl A placeholder for POSIX 2008 <stddef.h>, for platforms that have issues.
 # stddef_h.m4 serial 2
-dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4
index c5e813a..43e1f70 100644
--- a/gl/m4/stdint.m4
+++ b/gl/m4/stdint.m4
@@ -1,5 +1,5 @@
-# stdint.m4 serial 35
-dnl Copyright (C) 2001-2010 Free Software Foundation, Inc.
+# stdint.m4 serial 36
+dnl Copyright (C) 2001-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -259,7 +259,7 @@ static const char *macro_values[] =
           || strncmp (value, "((int)"/*)*/, 6) == 0
           || strncmp (value, "((signed short)"/*)*/, 15) == 0
           || strncmp (value, "((signed char)"/*)*/, 14) == 0)
-        return 1;
+        return mv - macro_values + 1;
     }
   return 0;
 ]])],
diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4
index f5650cd..945a93a 100644
--- a/gl/m4/stdio_h.m4
+++ b/gl/m4/stdio_h.m4
@@ -1,5 +1,5 @@
-# stdio_h.m4 serial 31
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+# stdio_h.m4 serial 32
+dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -95,6 +95,8 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   GNULIB_VSPRINTF_POSIX=0;       AC_SUBST([GNULIB_VSPRINTF_POSIX])
   dnl Assume proper GNU behavior unless another module says otherwise.
   HAVE_DECL_FPURGE=1;            AC_SUBST([HAVE_DECL_FPURGE])
+  HAVE_DECL_FSEEKO=1;            AC_SUBST([HAVE_DECL_FSEEKO])
+  HAVE_DECL_FTELLO=1;            AC_SUBST([HAVE_DECL_FTELLO])
   HAVE_DECL_GETDELIM=1;          AC_SUBST([HAVE_DECL_GETDELIM])
   HAVE_DECL_GETLINE=1;           AC_SUBST([HAVE_DECL_GETLINE])
   HAVE_DECL_OBSTACK_PRINTF=1;    AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
diff --git a/gl/m4/stdlib_h.m4 b/gl/m4/stdlib_h.m4
index e4697ce..e7ed4a9 100644
--- a/gl/m4/stdlib_h.m4
+++ b/gl/m4/stdlib_h.m4
@@ -1,5 +1,5 @@
-# stdlib_h.m4 serial 31
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+# stdlib_h.m4 serial 33
+dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -93,13 +93,14 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_REALPATH=1;           AC_SUBST([HAVE_REALPATH])
   HAVE_RPMATCH=1;            AC_SUBST([HAVE_RPMATCH])
   HAVE_SETENV=1;             AC_SUBST([HAVE_SETENV])
+  HAVE_DECL_SETENV=1;        AC_SUBST([HAVE_DECL_SETENV])
   HAVE_STRTOD=1;             AC_SUBST([HAVE_STRTOD])
   HAVE_STRTOLL=1;            AC_SUBST([HAVE_STRTOLL])
   HAVE_STRTOULL=1;           AC_SUBST([HAVE_STRTOULL])
   HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA])
   HAVE_SYS_LOADAVG_H=0;      AC_SUBST([HAVE_SYS_LOADAVG_H])
   HAVE_UNLOCKPT=1;           AC_SUBST([HAVE_UNLOCKPT])
-  HAVE_UNSETENV=1;           AC_SUBST([HAVE_UNSETENV])
+  HAVE_DECL_UNSETENV=1;      AC_SUBST([HAVE_DECL_UNSETENV])
   REPLACE_CALLOC=0;          AC_SUBST([REPLACE_CALLOC])
   REPLACE_CANONICALIZE_FILE_NAME=0;  AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME])
   REPLACE_MALLOC=0;          AC_SUBST([REPLACE_MALLOC])
diff --git a/gl/m4/sys_stat_h.m4 b/gl/m4/sys_stat_h.m4
index 7181c25..fc41912 100644
--- a/gl/m4/sys_stat_h.m4
+++ b/gl/m4/sys_stat_h.m4
@@ -1,5 +1,5 @@
 # sys_stat_h.m4 serial 24   -*- Autoconf -*-
-dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/time_h.m4 b/gl/m4/time_h.m4
index a45a10a..dc601c5 100644
--- a/gl/m4/time_h.m4
+++ b/gl/m4/time_h.m4
@@ -1,8 +1,8 @@
 # Configure a more-standard replacement for <time.h>.
 
-# Copyright (C) 2000-2001, 2003-2007, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2000-2001, 2003-2007, 2009-2011 Free Software Foundation, Inc.
 
-# serial 2
+# serial 3
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -95,7 +95,7 @@ AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
   GNULIB_TIMEGM=0;                       AC_SUBST([GNULIB_TIMEGM])
   GNULIB_TIME_R=0;                       AC_SUBST([GNULIB_TIME_R])
   dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_LOCALTIME_R=1;                    AC_SUBST([HAVE_LOCALTIME_R])
+  HAVE_DECL_LOCALTIME_R=1;               AC_SUBST([HAVE_DECL_LOCALTIME_R])
   HAVE_NANOSLEEP=1;                      AC_SUBST([HAVE_NANOSLEEP])
   HAVE_STRPTIME=1;                       AC_SUBST([HAVE_STRPTIME])
   HAVE_TIMEGM=1;                         AC_SUBST([HAVE_TIMEGM])
diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4
index e2f7f2b..ba45e8b 100644
--- a/gl/m4/unistd_h.m4
+++ b/gl/m4/unistd_h.m4
@@ -1,5 +1,5 @@
-# unistd_h.m4 serial 48
-dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
+# unistd_h.m4 serial 52
+dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -38,7 +38,7 @@ AC_DEFUN([gl_UNISTD_H],
     ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
     fsync ftruncate getcwd getdomainname getdtablesize getgroups
     gethostname getlogin getlogin_r getpagesize getusershell setusershell
-    endusershell lchown link linkat lseek pipe2 pread pwrite readlink
+    endusershell lchown link linkat lseek pipe pipe2 pread pwrite readlink
     readlinkat rmdir sleep symlink symlinkat ttyname_r unlink unlinkat
     usleep])
 ])
@@ -78,6 +78,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   GNULIB_LINK=0;             AC_SUBST([GNULIB_LINK])
   GNULIB_LINKAT=0;           AC_SUBST([GNULIB_LINKAT])
   GNULIB_LSEEK=0;            AC_SUBST([GNULIB_LSEEK])
+  GNULIB_PIPE=0;             AC_SUBST([GNULIB_PIPE])
   GNULIB_PIPE2=0;            AC_SUBST([GNULIB_PIPE2])
   GNULIB_PREAD=0;            AC_SUBST([GNULIB_PREAD])
   GNULIB_PWRITE=0;           AC_SUBST([GNULIB_PWRITE])
@@ -112,6 +113,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
   HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
   HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
+  HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
   HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
   HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
   HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
@@ -120,14 +122,15 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
   HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
   HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
-  HAVE_TTYNAME_R=1;       AC_SUBST([HAVE_TTYNAME_R])
   HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
+  HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
   HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
   HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
   HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
+  HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
   HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
   HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
   REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
@@ -137,6 +140,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
   REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
+  REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
   REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
   REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
   REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
diff --git a/gl/m4/valgrind-tests.m4 b/gl/m4/valgrind-tests.m4
index e2434c6..8f90dac 100644
--- a/gl/m4/valgrind-tests.m4
+++ b/gl/m4/valgrind-tests.m4
@@ -1,5 +1,5 @@
 # valgrind-tests.m4 serial 1
-dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/version-etc.m4 b/gl/m4/version-etc.m4
index 2c572b4..5032bf8 100644
--- a/gl/m4/version-etc.m4
+++ b/gl/m4/version-etc.m4
@@ -1,5 +1,5 @@
 # version-etc.m4 serial 1
-# Copyright (C) 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2009-2011 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/warn-on-use.m4 b/gl/m4/warn-on-use.m4
index 42daae8..e0d0f27 100644
--- a/gl/m4/warn-on-use.m4
+++ b/gl/m4/warn-on-use.m4
@@ -1,5 +1,5 @@
 # warn-on-use.m4 serial 2
-dnl Copyright (C) 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/warnings.m4 b/gl/m4/warnings.m4
index dad5c1f..a8f3466 100644
--- a/gl/m4/warnings.m4
+++ b/gl/m4/warnings.m4
@@ -1,5 +1,5 @@
 # warnings.m4 serial 2
-dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/wchar_h.m4 b/gl/m4/wchar_h.m4
index 8c8fad9..f16fd1b 100644
--- a/gl/m4/wchar_h.m4
+++ b/gl/m4/wchar_h.m4
@@ -1,13 +1,13 @@
 dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
 
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl Written by Eric Blake.
 
-# wchar_h.m4 serial 35
+# wchar_h.m4 serial 36
 
 AC_DEFUN([gl_WCHAR_H],
 [
@@ -39,7 +39,10 @@ AC_DEFUN([gl_WCHAR_H],
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[
-/* Some systems require additional headers.  */
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
 #if !(defined __GLIBC__ && !defined __UCLIBC__)
 # include <stddef.h>
 # include <stdio.h>
@@ -63,6 +66,13 @@ AC_DEFUN([gl_WCHAR_H_INLINE_OK],
     [gl_cv_header_wchar_h_correct_inline=yes
      AC_LANG_CONFTEST([
        AC_LANG_SOURCE([[#define wcstod renamed_wcstod
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
 #include <wchar.h>
 extern int zero (void);
 int main () { return zero(); }
@@ -71,6 +81,13 @@ int main () { return zero(); }
        mv conftest.$ac_objext conftest1.$ac_objext
        AC_LANG_CONFTEST([
          AC_LANG_SOURCE([[#define wcstod renamed_wcstod
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
 #include <wchar.h>
 int zero (void) { return 0; }
 ]])])
diff --git a/gl/m4/wchar_t.m4 b/gl/m4/wchar_t.m4
index a133e6a..d2c03c4 100644
--- a/gl/m4/wchar_t.m4
+++ b/gl/m4/wchar_t.m4
@@ -1,5 +1,5 @@
 # wchar_t.m4 serial 4 (gettext-0.18.2)
-dnl Copyright (C) 2002-2003, 2008-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2003, 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gl/m4/wint_t.m4 b/gl/m4/wint_t.m4
index 58ef865..da1ce3d 100644
--- a/gl/m4/wint_t.m4
+++ b/gl/m4/wint_t.m4
@@ -1,5 +1,5 @@
 # wint_t.m4 serial 5 (gettext-0.18.2)
-dnl Copyright (C) 2003, 2007-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.