update from gnulib

* build-aux/mktempd (rand_bytes, mktempd):
* build-aux/useless-if-before-free (FILE):
* build-aux/vc-list-files:
* gnulib/lib/.cvsignore:
* gnulib/lib/Makefile.am:
* gnulib/lib/poll.c (poll):
* gnulib/lib/stdbool.in.h (_GL_STDBOOL_H, true):
* gnulib/lib/stdio-impl.h (fp_, fp_ub):
* gnulib/lib/stdio.in.h (vasprintf, obstack_printf)
(obstack_vprintf):
* gnulib/lib/vasnprintf.c (_GNU_SOURCE, sprintf, IF_LINT, exp)
(remainder, scale10_round_decimal_long_double)
(scale10_round_decimal_double, pad_ourselves):
* gnulib/m4/gnulib-cache.m4:
* gnulib/m4/gnulib-common.m4 (gl_MODULE_INDICATOR):
* gnulib/m4/gnulib-tool.m4 (gl_LOCAL_DIR, gl_M4_BASE, gl_PO_BASE)
(gl_DOC_BASE, gl_TESTS_BASE, gl_WITH_TESTS, gl_LIB, gl_LGPL)
(gl_MAKEFILE_NAME, gl_MACRO_PREFIX, gl_PO_DOMAIN, gl_VC_FILES):
* gnulib/m4/lock.m4 (gl_LOCK_EARLY_BODY, gl_PREREQ_LOCK)
(gl_DISABLE_THREADS):
* gnulib/m4/onceonly.m4:
* gnulib/m4/posix-shell.m4 (gl_POSIX_SHELL):
* gnulib/m4/stdio_h.m4 (gl_STDIO_H_DEFAULTS):
* gnulib/tests/test-getaddrinfo.c (ENABLE_DEBUGGING, dbgprintf)
(simple):
* gnulib/tests/test-stdint.c (UINTMAX_MAX, or):
* gnulib/tests/test-vc-list-files-cvs.sh (compare):
* gnulib/tests/test-vc-list-files-git.sh (compare):

18 files changed, 222 insertions, 70 deletions

diff --git a/gnulib/lib/.cvsignore b/gnulib/lib/.cvsignore
index 554c9fd0e..2849ca97d 100644
--- a/gnulib/lib/.cvsignore
+++ b/gnulib/lib/.cvsignore
@@ -1,18 +1,18 @@
-alloca.h
-arpa_inet.h
-.deps
-float.h
 *.la
-.libs
 *.lo
+.deps
+.libs
 Makefile
 Makefile.in
+alloca.h
+arpa_inet.h
+float.h
 netinet_in.h
 poll.h
 stdbool.h
 stdint.h
-stdio.h
 stdio-impl.h
+stdio.h
 stdlib.h
 string.h
 sys_select.h
diff --git a/gnulib/lib/Makefile.am b/gnulib/lib/Makefile.am
index 8706bcb87..576b95123 100644
--- a/gnulib/lib/Makefile.am
+++ b/gnulib/lib/Makefile.am
@@ -9,7 +9,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --doc-base=doc --aux-dir=build-aux --with-tests --lgpl=2 --libtool --macro-prefix=gl c-ctype getaddrinfo getpass gettext mktempd physmem poll posix-shell strndup strsep sys_stat useless-if-before-free vasprintf vc-list-files verify
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --doc-base=doc --aux-dir=build-aux --with-tests --lgpl=2 --libtool --macro-prefix=gl c-ctype getaddrinfo getpass gettext inet_pton mktempd physmem poll posix-shell strndup strsep sys_stat useless-if-before-free vasprintf vc-list-files verify
 
 AUTOMAKE_OPTIONS = 1.5 gnits
 
@@ -188,6 +188,15 @@ EXTRA_libgnu_la_SOURCES += inet_ntop.c
 
 ## end   gnulib module inet_ntop
 
+## begin gnulib module inet_pton
+
+
+EXTRA_DIST += inet_pton.c
+
+EXTRA_libgnu_la_SOURCES += inet_pton.c
+
+## end   gnulib module inet_pton
+
 ## begin gnulib module link-warning
 
 LINK_WARNING_H=$(top_srcdir)/build-aux/link-warning.h
@@ -382,6 +391,8 @@ stdio.h: stdio.in.h
 	      -e 's|@''NEXT_STDIO_H''@|$(NEXT_STDIO_H)|g' \
 	      -e 's|@''GNULIB_FPRINTF_POSIX''@|$(GNULIB_FPRINTF_POSIX)|g' \
 	      -e 's|@''GNULIB_PRINTF_POSIX''@|$(GNULIB_PRINTF_POSIX)|g' \
+	      -e 's|@''GNULIB_OBSTACK_PRINTF''@|$(GNULIB_OBSTACK_PRINTF)|g' \
+	      -e 's|@''GNULIB_OBSTACK_PRINTF_POSIX''@|$(GNULIB_OBSTACK_PRINTF_POSIX)|g' \
 	      -e 's|@''GNULIB_SNPRINTF''@|$(GNULIB_SNPRINTF)|g' \
 	      -e 's|@''GNULIB_SPRINTF_POSIX''@|$(GNULIB_SPRINTF_POSIX)|g' \
 	      -e 's|@''GNULIB_VFPRINTF_POSIX''@|$(GNULIB_VFPRINTF_POSIX)|g' \
@@ -420,6 +431,8 @@ stdio.h: stdio.in.h
 	      -e 's|@''HAVE_DECL_GETDELIM''@|$(HAVE_DECL_GETDELIM)|g' \
 	      -e 's|@''HAVE_DECL_GETLINE''@|$(HAVE_DECL_GETLINE)|g' \
 	      -e 's|@''REPLACE_GETLINE''@|$(REPLACE_GETLINE)|g' \
+	      -e 's|@''HAVE_DECL_OBSTACK_PRINTF''@|$(HAVE_DECL_OBSTACK_PRINTF)|g' \
+	      -e 's|@''REPLACE_OBSTACK_PRINTF''@|$(REPLACE_OBSTACK_PRINTF)|g' \
 	      -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
 	      < $(srcdir)/stdio.in.h; \
 	} > $@-t
diff --git a/gnulib/lib/poll.c b/gnulib/lib/poll.c
index b92c0f3f5..b84cad3d0 100644
--- a/gnulib/lib/poll.c
+++ b/gnulib/lib/poll.c
@@ -55,19 +55,25 @@ poll (pfd, nfd, timeout)
      int timeout;
 {
   fd_set rfds, wfds, efds;
-  struct timeval tv, *ptv;
+  struct timeval tv;
+  struct timeval *ptv;
   int maxfd, rc;
   nfds_t i;
 
 #ifdef _SC_OPEN_MAX
-  if (nfd > sysconf (_SC_OPEN_MAX))
+  static int sc_open_max = -1;
+
+  if (nfd < 0
+      || (nfd > sc_open_max
+          && (sc_open_max != -1
+	      || nfd > (sc_open_max = sysconf (_SC_OPEN_MAX)))))
     {
       errno = EINVAL;
       return -1;
     }
 #else /* !_SC_OPEN_MAX */
 #ifdef OPEN_MAX
-  if (nfd > OPEN_MAX)
+  if (nfd < 0 || nfd > OPEN_MAX)
     {
       errno = EINVAL;
       return -1;
@@ -84,10 +90,15 @@ poll (pfd, nfd, timeout)
     }
 
   /* convert timeout number into a timeval structure */
-  ptv = &tv;
-  if (timeout >= 0)
+  if (timeout == 0)
+    {
+      ptv = &tv;
+      ptv->tv_sec = 0;
+      ptv->tv_usec = 0;
+    }
+  else if (timeout > 0)
     {
-      /* return immediately or after timeout */
+      ptv = &tv;
       ptv->tv_sec = timeout / 1000;
       ptv->tv_usec = (timeout % 1000) * 1000;
     }
@@ -155,6 +166,7 @@ poll (pfd, nfd, timeout)
 	if (FD_ISSET (pfd[i].fd, &rfds))
 	  {
 	    int r;
+	    int socket_errno;
 
 #if defined __MACH__ && defined __APPLE__
 	    /* There is a bug in Mac OS X that causes it to ignore MSG_PEEK
@@ -162,23 +174,25 @@ poll (pfd, nfd, timeout)
 	       connected socket, a server socket, or something else using a
 	       0-byte recv, and use ioctl(2) to detect POLLHUP.  */
 	    r = recv (pfd[i].fd, NULL, 0, MSG_PEEK);
-	    if (r == 0 || errno == ENOTSOCK)
+	    socket_errno = (r < 0) ? errno : 0;
+	    if (r == 0 || socket_errno == ENOTSOCK)
 	      ioctl(pfd[i].fd, FIONREAD, &r);
 #else
 	    char data[64];
 	    r = recv (pfd[i].fd, data, sizeof (data), MSG_PEEK);
+	    socket_errno = (r < 0) ? errno : 0;
 #endif
 	    if (r == 0)
 	      happened |= POLLHUP;
 
 	    /* If the event happened on an unconnected server socket,
 	       that's fine. */
-	    else if (r > 0 || ( /* (r == -1) && */ errno == ENOTCONN))
+	    else if (r > 0 || ( /* (r == -1) && */ socket_errno == ENOTCONN))
 	      happened |= (POLLIN | POLLRDNORM) & sought;
 
 	    /* Distinguish hung-up sockets from other errors.  */
-	    else if (errno == ESHUTDOWN || errno == ECONNRESET
-		     || errno == ECONNABORTED || errno == ENETRESET)
+	    else if (socket_errno == ESHUTDOWN || socket_errno == ECONNRESET
+		     || socket_errno == ECONNABORTED || socket_errno == ENETRESET)
 	      happened |= POLLHUP;
 
 	    else
diff --git a/gnulib/lib/stdbool.in.h b/gnulib/lib/stdbool.in.h
index 4e043a0b0..45375b367 100644
--- a/gnulib/lib/stdbool.in.h
+++ b/gnulib/lib/stdbool.in.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2002, 2003, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2003, 2006-2008 Free Software Foundation, Inc.
    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
 
    This program is free software; you can redistribute it and/or modify
@@ -58,7 +58,7 @@
 
 /* BeOS <sys/socket.h> already #defines false 0, true 1.  We use the same
    definitions below, but temporarily we have to #undef them.  */
-#ifdef __BEOS__
+#if defined __BEOS__ && !defined __HAIKU__
 # include <OS.h> /* defines bool but not _Bool */
 # undef false
 # undef true
@@ -73,7 +73,7 @@
    (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
    (see ISO C 99 6.3.1.1.(2)).  So we add a negative value to the
    enum; this ensures that '_Bool' promotes to 'int'.  */
-#if defined __cplusplus || defined __BEOS__
+#if defined __cplusplus || (defined __BEOS__ && !defined __HAIKU__)
   /* A compiler known to have 'bool'.  */
   /* If the compiler already has both 'bool' and '_Bool', we can assume they
      are the same types.  */
diff --git a/gnulib/lib/stdio-impl.h b/gnulib/lib/stdio-impl.h
index 199d62ebe..e52a7d884 100644
--- a/gnulib/lib/stdio-impl.h
+++ b/gnulib/lib/stdio-impl.h
@@ -35,7 +35,7 @@
 			 struct { unsigned char *_base; int _size; } _ub; \
 			 int _ur; \
 			 unsigned char _ubuf[3]; \
-			 unsigned cahr _nbuf[1]; \
+			 unsigned char _nbuf[1]; \
 			 struct { unsigned char *_base; int _size; } _lb; \
 			 int _blksize; \
 			 fpos_t _offset; \
@@ -60,7 +60,7 @@
     };
 #  define fp_ub ((struct __sfileext *) fp->_ext._base)->_ub
 # else                                         /* FreeBSD, DragonFly, MacOS X, Cygwin */
-#  define fp_ub fp->_ub
+#  define fp_ub fp_->_ub
 # endif
 
 # define HASUB(fp) (fp_ub._base != NULL)
diff --git a/gnulib/lib/stdio.in.h b/gnulib/lib/stdio.in.h
index d5962aa4f..ea4df7c65 100644
--- a/gnulib/lib/stdio.in.h
+++ b/gnulib/lib/stdio.in.h
@@ -212,6 +212,26 @@ extern int vsprintf (char *str, const char *format, va_list args)
 # endif
 #endif
 
+#if @GNULIB_OBSTACK_PRINTF@
+# if @REPLACE_OBSTACK_PRINTF@
+#  define obstack_printf rpl_osbtack_printf
+#  define obstack_vprintf rpl_obstack_vprintf
+# endif
+# if @REPLACE_OBSTACK_PRINTF@ || !@HAVE_DECL_OBSTACK_PRINTF@
+  struct obstack;
+  /* Grow an obstack with formatted output.  Return the number of
+     bytes added to OBS.  No trailing nul byte is added, and the
+     object should be closed with obstack_finish before use.  Upon
+     memory allocation error, call obstack_alloc_failed_handler.  Upon
+     other error, return -1.  */
+  extern int obstack_printf (struct obstack *obs, const char *format, ...)
+    __attribute__ ((__format__ (__printf__, 2, 3)));
+  extern int obstack_vprintf (struct obstack *obs, const char *format,
+			      va_list args)
+    __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#endif
+
 #if @GNULIB_FOPEN@
 # if @REPLACE_FOPEN@
 #  define fopen rpl_fopen
diff --git a/gnulib/lib/vasnprintf.c b/gnulib/lib/vasnprintf.c
index 4583f7d86..495f9ad82 100644
--- a/gnulib/lib/vasnprintf.c
+++ b/gnulib/lib/vasnprintf.c
@@ -95,7 +95,7 @@
 
 #if (NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
 # include <math.h>
-# include "isnand.h"
+# include "isnand-nolibm.h"
 #endif
 
 #if (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE) && !defined IN_LIBINTL
@@ -106,7 +106,7 @@
 
 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
 # include <math.h>
-# include "isnand.h"
+# include "isnand-nolibm.h"
 # include "printf-frexp.h"
 #endif
 
@@ -200,6 +200,21 @@ local_wcslen (const wchar_t *s)
 /* Here we need to call the native sprintf, not rpl_sprintf.  */
 #undef sprintf
 
+/* GCC >= 4.0 with -Wall emits unjustified "... may be used uninitialized"
+   warnings in this file.  Use -Dlint to suppress them.  */
+#ifdef lint
+# define IF_LINT(Code) Code
+#else
+# define IF_LINT(Code) /* empty */
+#endif
+
+/* Avoid some warnings from "gcc -Wshadow".
+   This file doesn't use the exp() and remainder() functions.  */
+#undef exp
+#define exp expo
+#undef remainder
+#define remainder rem
+
 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
 /* Determine the decimal-point character according to the current locale.  */
 # ifndef decimal_point_char_defined
@@ -1198,7 +1213,7 @@ scale10_round_decimal_decoded (int e, mpn_t m, void *memory, int n)
 static char *
 scale10_round_decimal_long_double (long double x, int n)
 {
-  int e;
+  int e IF_LINT(= 0);
   mpn_t m;
   void *memory = decode_long_double (x, &e, &m);
   return scale10_round_decimal_decoded (e, m, memory, n);
@@ -1216,7 +1231,7 @@ scale10_round_decimal_long_double (long double x, int n)
 static char *
 scale10_round_decimal_double (double x, int n)
 {
-  int e;
+  int e IF_LINT(= 0);
   mpn_t m;
   void *memory = decode_double (x, &e, &m);
   return scale10_round_decimal_decoded (e, m, memory, n);
@@ -3693,7 +3708,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
 #endif
 		TCHAR_T *fbp;
 		unsigned int prefix_count;
-		int prefixes[2];
+		int prefixes[2] IF_LINT (= { 0 });
 #if !USE_SNPRINTF
 		size_t tmp_length;
 		TCHAR_T tmpbuf[700];
diff --git a/gnulib/m4/gnulib-cache.m4 b/gnulib/m4/gnulib-cache.m4
index 04b349891..d26e7f05d 100644
--- a/gnulib/m4/gnulib-cache.m4
+++ b/gnulib/m4/gnulib-cache.m4
@@ -15,11 +15,28 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --doc-base=doc --aux-dir=build-aux --with-tests --lgpl=2 --libtool --macro-prefix=gl c-ctype getaddrinfo getpass gettext mktempd physmem poll posix-shell strndup strsep sys_stat useless-if-before-free vasprintf vc-list-files verify
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gnulib/lib --m4-base=gnulib/m4 --doc-base=doc --aux-dir=build-aux --with-tests --lgpl=2 --libtool --macro-prefix=gl c-ctype getaddrinfo getpass gettext inet_pton mktempd physmem poll posix-shell strndup strsep sys_stat useless-if-before-free vasprintf vc-list-files verify
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
-gl_MODULES([c-ctype getaddrinfo getpass gettext mktempd physmem poll posix-shell strndup strsep sys_stat useless-if-before-free vasprintf vc-list-files verify])
+gl_MODULES([
+  c-ctype
+  getaddrinfo
+  getpass
+  gettext
+  inet_pton
+  mktempd
+  physmem
+  poll
+  posix-shell
+  strndup
+  strsep
+  sys_stat
+  useless-if-before-free
+  vasprintf
+  vc-list-files
+  verify
+])
 gl_AVOID([])
 gl_SOURCE_BASE([gnulib/lib])
 gl_M4_BASE([gnulib/m4])
diff --git a/gnulib/m4/gnulib-common.m4 b/gnulib/m4/gnulib-common.m4
index 3edfc120f..34d91c728 100644
--- a/gnulib/m4/gnulib-common.m4
+++ b/gnulib/m4/gnulib-common.m4
@@ -1,4 +1,4 @@
-# gnulib-common.m4 serial 4
+# gnulib-common.m4 serial 5
 dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -31,6 +31,13 @@ AC_DEFUN([gl_MODULE_INDICATOR],
     [Define to 1 when using the gnulib module ]$1[.])
 ])
 
+# m4_foreach_w
+# is a backport of autoconf-2.59c's m4_foreach_w.
+# Remove this macro when we can assume autoconf >= 2.60.
+m4_ifndef([m4_foreach_w],
+  [m4_define([m4_foreach_w],
+    [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
+
 # AC_PROG_MKDIR_P
 # is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
 # Remove this macro when we can assume autoconf >= 2.60.
diff --git a/gnulib/m4/gnulib-tool.m4 b/gnulib/m4/gnulib-tool.m4
index ef5932031..4438d4886 100644
--- a/gnulib/m4/gnulib-tool.m4
+++ b/gnulib/m4/gnulib-tool.m4
@@ -1,4 +1,4 @@
-# gnulib-tool.m4 serial 1
+# gnulib-tool.m4 serial 2
 dnl Copyright (C) 2004-2005 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -8,6 +8,9 @@ dnl The following macros need not be invoked explicitly.
 dnl Invoking them does nothing except to declare default arguments
 dnl for "gnulib-tool --import".
 
+dnl Usage: gl_LOCAL_DIR([DIR])
+AC_DEFUN([gl_LOCAL_DIR], [])
+
 dnl Usage: gl_MODULES([module1 module2 ...])
 AC_DEFUN([gl_MODULES], [])
 
@@ -20,14 +23,35 @@ AC_DEFUN([gl_SOURCE_BASE], [])
 dnl Usage: gl_M4_BASE([DIR])
 AC_DEFUN([gl_M4_BASE], [])
 
+dnl Usage: gl_PO_BASE([DIR])
+AC_DEFUN([gl_PO_BASE], [])
+
+dnl Usage: gl_DOC_BASE([DIR])
+AC_DEFUN([gl_DOC_BASE], [])
+
+dnl Usage: gl_TESTS_BASE([DIR])
+AC_DEFUN([gl_TESTS_BASE], [])
+
+dnl Usage: gl_WITH_TESTS
+AC_DEFUN([gl_WITH_TESTS], [])
+
 dnl Usage: gl_LIB([LIBNAME])
 AC_DEFUN([gl_LIB], [])
 
-dnl Usage: gl_LGPL
+dnl Usage: gl_LGPL or gl_LGPL([VERSION])
 AC_DEFUN([gl_LGPL], [])
 
+dnl Usage: gl_MAKEFILE_NAME([FILENAME])
+AC_DEFUN([gl_MAKEFILE_NAME], [])
+
 dnl Usage: gl_LIBTOOL
 AC_DEFUN([gl_LIBTOOL], [])
 
 dnl Usage: gl_MACRO_PREFIX([PREFIX])
 AC_DEFUN([gl_MACRO_PREFIX], [])
+
+dnl Usage: gl_PO_DOMAIN([DOMAIN])
+AC_DEFUN([gl_PO_DOMAIN], [])
+
+dnl Usage: gl_VC_FILES([BOOLEAN])
+AC_DEFUN([gl_VC_FILES], [])
diff --git a/gnulib/m4/lock.m4 b/gnulib/m4/lock.m4
index 911193353..d59028953 100644
--- a/gnulib/m4/lock.m4
+++ b/gnulib/m4/lock.m4
@@ -1,11 +1,13 @@
-# lock.m4 serial 7 (gettext-0.17)
-dnl Copyright (C) 2005-2007 Free Software Foundation, Inc.
+# lock.m4 serial 8 (gettext-0.18)
+dnl Copyright (C) 2005-2008 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 From Bruno Haible.
 
+dnl gl_LOCK
+dnl -------
 dnl Tests for a multithreading library to be used.
 dnl Defines at most one of the macros USE_POSIX_THREADS, USE_SOLARIS_THREADS,
 dnl USE_PTH_THREADS, USE_WIN32_THREADS
@@ -42,17 +44,22 @@ AC_DEFUN([gl_LOCK_EARLY_BODY],
     [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
     [AC_REQUIRE([AC_GNU_SOURCE])])
   dnl Check for multithreading.
+  m4_divert_text([DEFAULTS], [gl_use_threads_default=])
   AC_ARG_ENABLE(threads,
 AC_HELP_STRING([--enable-threads={posix|solaris|pth|win32}], [specify multithreading API])
 AC_HELP_STRING([--disable-threads], [build without multithread safety]),
     [gl_use_threads=$enableval],
-    [case "$host_os" in
-       dnl Disable multithreading by default on OSF/1, because it interferes
-       dnl with fork()/exec(): When msgexec is linked with -lpthread, its child
-       dnl process gets an endless segmentation fault inside execvp().
-       osf*) gl_use_threads=no ;;
-       *)    gl_use_threads=yes ;;
-     esac
+    [if test -n "$gl_use_threads_default"; then
+       gl_use_threads="$gl_use_threads_default"
+     else
+       case "$host_os" in
+         dnl Disable multithreading by default on OSF/1, because it interferes
+         dnl with fork()/exec(): When msgexec is linked with -lpthread, its
+         dnl child process gets an endless segmentation fault inside execvp().
+         osf*) gl_use_threads=no ;;
+         *)    gl_use_threads=yes ;;
+       esac
+     fi
     ])
   if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
     # For using <pthread.h>:
@@ -262,6 +269,18 @@ AC_DEFUN([gl_PREREQ_LOCK], [
   AC_REQUIRE([AC_C_INLINE])
 ])
 
+
+dnl gl_DISABLE_THREADS
+dnl ------------------
+dnl Sets the gl_LOCK default so that threads are not used by default.
+dnl The user can still override it at installation time, by using the
+dnl configure option '--enable-threads'.
+
+AC_DEFUN([gl_DISABLE_THREADS], [
+  m4_divert_text([INIT_PREPARE], [gl_use_threads_default=no])
+])
+
+
 dnl Survey of platforms:
 dnl
 dnl Platform          Available   Compiler    Supports   test-lock
diff --git a/gnulib/m4/onceonly.m4 b/gnulib/m4/onceonly.m4
index 2bf1590d5..108cd6c1a 100644
--- a/gnulib/m4/onceonly.m4
+++ b/gnulib/m4/onceonly.m4
@@ -1,4 +1,4 @@
-# onceonly.m4 serial 5
+# onceonly.m4 serial 6
 dnl Copyright (C) 2002-2003, 2005-2006, 2008 Free Software Foundation, Inc.
 dnl This file is free software, distributed under the terms of the GNU
 dnl General Public License.  As a special exception to the GNU General
@@ -21,13 +21,16 @@ dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to
 dnl empty, and the check will be inserted before the body of the AC_DEFUNed
 dnl function.
 
-dnl This is like onceonly.m4, except that it uses diversions to named sections
-dnl DEFAULTS and INIT_PREPARE in order to check all requested headers at once,
-dnl thus reducing the size of 'configure'. Works with autoconf-2.57. The
-dnl size reduction is ca. 9%.
+dnl The original code implemented AC_CHECK_HEADERS_ONCE and AC_CHECK_FUNCS_ONCE
+dnl in terms of AC_DEFUN and AC_REQUIRE. This implementation uses diversions to
+dnl named sections DEFAULTS and INIT_PREPARE in order to check all requested
+dnl headers at once, thus reducing the size of 'configure'. It is known to work
+dnl with autoconf 2.57..2.62 at least . The size reduction is ca. 9%.
 
 dnl Autoconf version 2.59 plus gnulib is required; this file is not needed
-dnl with Autoconf 2.60 or greater.
+dnl with Autoconf 2.60 or greater. But note that autoconf's implementation of
+dnl AC_CHECK_DECLS_ONCE expects a comma-separated list of symbols as first
+dnl argument!
 AC_PREREQ([2.59])
 
 # AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
diff --git a/gnulib/m4/posix-shell.m4 b/gnulib/m4/posix-shell.m4
index ac526d5c3..7f3b1e944 100644
--- a/gnulib/m4/posix-shell.m4
+++ b/gnulib/m4/posix-shell.m4
@@ -1,6 +1,6 @@
 # Find a POSIX-conforming shell.
 
-# Copyright (C) 2007 Free Software Foundation, Inc.
+# Copyright (C) 2007-2008 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -15,7 +15,7 @@
 AC_DEFUN([gl_POSIX_SHELL],
 [
   AC_CACHE_CHECK([for a shell that conforms to POSIX], [gl_cv_posix_shell],
-    [gl_test_POSIX_SHELL='
+    [gl_test_posix_shell_script='
        func_return () {
 	 (exit [$]1)
        }
@@ -42,7 +42,8 @@ AC_DEFUN([gl_POSIX_SHELL],
 	 "$CONFIG_SHELL" "$SHELL" /bin/sh /bin/bash /bin/ksh /bin/sh5 no; do
        case $gl_cv_posix_shell in
          /*)
-	   "$gl_cv_posix_shell" -c "$gl_test_POSIX_shell" 2>/dev/null && break;;
+	   "$gl_cv_posix_shell" -c "$gl_test_posix_shell_script" 2>/dev/null \
+	     && break;;
        esac
      done])
 
diff --git a/gnulib/m4/stdio_h.m4 b/gnulib/m4/stdio_h.m4
index fa262e359..4980f9e0d 100644
--- a/gnulib/m4/stdio_h.m4
+++ b/gnulib/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 10
+# stdio_h.m4 serial 11
 dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -21,6 +21,8 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
 [
   GNULIB_FPRINTF_POSIX=0;  AC_SUBST([GNULIB_FPRINTF_POSIX])
   GNULIB_PRINTF_POSIX=0;   AC_SUBST([GNULIB_PRINTF_POSIX])
+  GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF])
+  GNULIB_OBSTACK_PRINTF_POSIX=0;  AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
   GNULIB_SNPRINTF=0;       AC_SUBST([GNULIB_SNPRINTF])
   GNULIB_SPRINTF_POSIX=0;  AC_SUBST([GNULIB_SPRINTF_POSIX])
   GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
@@ -62,6 +64,8 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   HAVE_DECL_GETDELIM=1;    AC_SUBST([HAVE_DECL_GETDELIM])
   HAVE_DECL_GETLINE=1;     AC_SUBST([HAVE_DECL_GETLINE])
   REPLACE_GETLINE=0;       AC_SUBST([REPLACE_GETLINE])
+  HAVE_DECL_OBSTACK_PRINTF=1;     AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
+  REPLACE_OBSTACK_PRINTF=0;       AC_SUBST([REPLACE_OBSTACK_PRINTF])
 ])
 
 dnl Code shared by fseeko and ftello.  Determine if large files are supported,
diff --git a/gnulib/tests/test-getaddrinfo.c b/gnulib/tests/test-getaddrinfo.c
index 530f8dc31..bfdb9cf0e 100644
--- a/gnulib/tests/test-getaddrinfo.c
+++ b/gnulib/tests/test-getaddrinfo.c
@@ -24,6 +24,15 @@
 #include <stdio.h>
 #include <string.h>
 
+/* Whether to print debugging messages.  */
+#define ENABLE_DEBUGGING 0
+
+#if ENABLE_DEBUGGING
+# define dbgprintf printf
+#else
+# define dbgprintf if (0) printf
+#endif
+
 /* BeOS does not have AF_UNSPEC.  */
 #ifndef AF_UNSPEC
 # define AF_UNSPEC 0
@@ -40,7 +49,7 @@ int simple (char *host, char *service)
   struct addrinfo *ai0, *ai;
   int res;
 
-  printf ("Finding %s service %s...\n", host, service);
+  dbgprintf ("Finding %s service %s...\n", host, service);
 
   /* This initializes "hints" but does not use it.  Is there a reason
      for this?  If so, please fix this comment.  */
@@ -51,7 +60,7 @@ int simple (char *host, char *service)
 
   res = getaddrinfo (host, service, 0, &ai0);
 
-  printf ("res %d: %s\n", res, gai_strerror (res));
+  dbgprintf ("res %d: %s\n", res, gai_strerror (res));
 
   if (res != 0)
     {
@@ -73,18 +82,18 @@ int simple (char *host, char *service)
 
   for (ai = ai0; ai; ai = ai->ai_next)
     {
-      printf ("\tflags %x\n", ai->ai_flags);
-      printf ("\tfamily %x\n", ai->ai_family);
-      printf ("\tsocktype %x\n", ai->ai_socktype);
-      printf ("\tprotocol %x\n", ai->ai_protocol);
-      printf ("\taddrlen %ld: ", (unsigned long) ai->ai_addrlen);
-      printf ("\tFound %s\n",
-	      inet_ntop (ai->ai_family,
-			 &((struct sockaddr_in *)
-			  ai->ai_addr)->sin_addr,
-			 buf, sizeof (buf) - 1));
+      dbgprintf ("\tflags %x\n", ai->ai_flags);
+      dbgprintf ("\tfamily %x\n", ai->ai_family);
+      dbgprintf ("\tsocktype %x\n", ai->ai_socktype);
+      dbgprintf ("\tprotocol %x\n", ai->ai_protocol);
+      dbgprintf ("\taddrlen %ld: ", (unsigned long) ai->ai_addrlen);
+      dbgprintf ("\tFound %s\n",
+		 inet_ntop (ai->ai_family,
+			    &((struct sockaddr_in *)
+			      ai->ai_addr)->sin_addr,
+			    buf, sizeof (buf) - 1));
       if (ai->ai_canonname)
-	printf ("\tFound %s...\n", ai->ai_canonname);
+	dbgprintf ("\tFound %s...\n", ai->ai_canonname);
 
       {
 	char ipbuf[BUFSIZ];
@@ -94,11 +103,11 @@ int simple (char *host, char *service)
 			   ipbuf, sizeof (ipbuf) - 1,
 			   portbuf, sizeof (portbuf) - 1,
 			   NI_NUMERICHOST|NI_NUMERICSERV);
-	printf ("\t\tgetnameinfo %d: %s\n", res, gai_strerror (res));
+	dbgprintf ("\t\tgetnameinfo %d: %s\n", res, gai_strerror (res));
 	if (res == 0)
 	  {
-	    printf ("\t\tip %s\n", ipbuf);
-	    printf ("\t\tport %s\n", portbuf);
+	    dbgprintf ("\t\tip %s\n", ipbuf);
+	    dbgprintf ("\t\tport %s\n", portbuf);
 	  }
       }
 
diff --git a/gnulib/tests/test-stdint.c b/gnulib/tests/test-stdint.c
index 9e1d57e53..a2bf42ac8 100644
--- a/gnulib/tests/test-stdint.c
+++ b/gnulib/tests/test-stdint.c
@@ -1,5 +1,5 @@
 /* Test of <stdint.h> substitute.
-   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2006-2008 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -246,11 +246,15 @@ uintmax_t j[2] = { UINTMAX_C (17), UINTMAX_MAX };
 verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
 verify_same_types (UINTMAX_MAX, (uintmax_t) 0 + 0);
 
+/* As of 2007, Sun C and HP-UX 10.20 cc don't support 'long long' constants in
+   the preprocessor.  */
+#if !(defined __SUNPRO_C || (defined __hpux && !defined __GNUC__))
 #if INTMAX_MIN && INTMAX_MAX && UINTMAX_MAX
 /* ok */
 #else
 err or;
 #endif
+#endif
 
 /* 7.18.3. Limits of other integer types */
 
diff --git a/gnulib/tests/test-vc-list-files-cvs.sh b/gnulib/tests/test-vc-list-files-cvs.sh
index febd13b43..c87267cde 100755
--- a/gnulib/tests/test-vc-list-files-cvs.sh
+++ b/gnulib/tests/test-vc-list-files-cvs.sh
@@ -44,7 +44,8 @@ for i in with-cvsu without; do
   ok=0
   mkdir $tmpdir && cd $tmpdir &&
     # without cvs, skip the test
-    { cvs -Q -d "$repo" init || exit 77; } &&
+    # The double use of 'exit' is needed for the reference to $? inside the trap.
+    { ( cvs -Q -d "$repo" init ) > /dev/null 2>&1 || { (exit 77); exit 77; }; } &&
     mkdir w && cd w &&
     mkdir d &&
     touch d/a b c &&
diff --git a/gnulib/tests/test-vc-list-files-git.sh b/gnulib/tests/test-vc-list-files-git.sh
index 5b8d94fb7..ac50971db 100755
--- a/gnulib/tests/test-vc-list-files-git.sh
+++ b/gnulib/tests/test-vc-list-files-git.sh
@@ -31,7 +31,8 @@ trap '(exit $?); exit $?' 1 2 13 15
 fail=1
 mkdir $tmpdir && cd $tmpdir &&
   # without git, skip the test
-  { git init -q || exit 77; } &&
+  # The double use of 'exit' is needed for the reference to $? inside the trap.
+  { ( git init -q ) > /dev/null 2>&1 || { (exit 77); exit 77; }; } &&
   mkdir d &&
   touch d/a b c &&
   git add . > /dev/null &&