Merge from gnulib.

10 files changed, 103 insertions, 33 deletions

diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
index 6f593d7663..a7f94f96da 100644
--- a/doc/misc/texinfo.tex
+++ b/doc/misc/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2011-08-15.20}
+\def\texinfoversion{2011-08-14.17}
 %
 % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
@@ -5855,7 +5855,6 @@ end
   % This is purely so the last item on the list is a known \penalty >
   % 10000.  This is so \startdefun can avoid allowing breakpoints after
   % section headings.  Otherwise, it would insert a valid breakpoint between:
-  %
   %   @section sec-whatever
   %   @deffn def-whatever
   \penalty 10001
@@ -6273,6 +6272,12 @@ end
   \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
   % Flag to tell @lisp, etc., not to narrow margin.
   \let\nonarrowing = t%
+  %
+  % If this cartouche directly follows a sectioning command, we need the
+  % \parskip glue (backspaced over by default) or the cartouche can
+  % collide with the section heading.
+  \ifnum\lastpenalty>10000 \vskip\parskip \fi
+  %
   \vbox\bgroup
       \baselineskip=0pt\parskip=0pt\lineskip=0pt
       \carttop
@@ -6286,7 +6291,7 @@ end
 	      \lineskip=\normlskip
 	      \parskip=\normpskip
 	      \vskip -\parskip
-	      \comment % For explanation, see the end of \def\group.
+	      \comment % For explanation, see the end of def\group.
 }
 \def\Ecartouche{%
               \ifhmode\par\fi
@@ -9620,3 +9625,6 @@ directory should work if nowhere else does.}
 
 @c vim:sw=2:
 
+@ignore
+   arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115
+@end ignore
diff --git a/lib/lstat.c b/lib/lstat.c
index b26065ede2..29fc6d25f9 100644
--- a/lib/lstat.c
+++ b/lib/lstat.c
@@ -17,6 +17,10 @@
 
 /* written by Jim Meyering */
 
+/* If the user's config.h happens to include <sys/stat.h>, let it include only
+   the system's <sys/stat.h> here, so that orig_lstat doesn't recurse to
+   rpl_lstat.  */
+#define __need_system_sys_stat_h
 #include <config.h>
 
 #if !HAVE_LSTAT
@@ -27,7 +31,6 @@ typedef int dummy;
 #else /* HAVE_LSTAT */
 
 /* Get the original definition of lstat.  It might be defined as a macro.  */
-# define __need_system_sys_stat_h
 # include <sys/types.h>
 # include <sys/stat.h>
 # undef __need_system_sys_stat_h
diff --git a/lib/stat.c b/lib/stat.c
index f07370dd06..6c354d1d35 100644
--- a/lib/stat.c
+++ b/lib/stat.c
@@ -16,10 +16,13 @@
 
 /* written by Eric Blake */
 
+/* If the user's config.h happens to include <sys/stat.h>, let it include only
+   the system's <sys/stat.h> here, so that orig_stat doesn't recurse to
+   rpl_stat.  */
+#define __need_system_sys_stat_h
 #include <config.h>
 
 /* Get the original definition of stat.  It might be defined as a macro.  */
-#define __need_system_sys_stat_h
 #include <sys/types.h>
 #include <sys/stat.h>
 #undef __need_system_sys_stat_h
diff --git a/lib/unistd.in.h b/lib/unistd.in.h
index 769ecf0d43..119cd142f4 100644
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@@ -85,7 +85,8 @@
 /* mingw declares getcwd in <io.h>, not in <unistd.h>.  */
 #if ((@GNULIB_GETCWD@ || defined GNULIB_POSIXCHECK) \
      && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
-# include <io.h>
+# include <io.h>     /* mingw32, mingw64 */
+# include <direct.h> /* mingw64 */
 #endif
 
 /* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
diff --git a/m4/gl-comp.m4 b/m4/gl-comp.m4
index becf95bef7..f7d99ca6f4 100644
--- a/m4/gl-comp.m4
+++ b/m4/gl-comp.m4
@@ -25,7 +25,7 @@ AC_DEFUN([gl_EARLY],
   m4_pattern_allow([^gl_ES$])dnl a valid locale name
   m4_pattern_allow([^gl_LIBOBJS$])dnl a variable
   m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable
-  AC_REQUIRE([AC_PROG_RANLIB])
+  AC_REQUIRE([gl_PROG_AR_RANLIB])
   # Code from module alloca-opt:
   # Code from module allocator:
   # Code from module careadlinkat:
@@ -48,6 +48,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module intprops:
   # Code from module inttypes-incomplete:
   # Code from module largefile:
+  AC_REQUIRE([AC_SYS_LARGEFILE])
   # Code from module lstat:
   # Code from module mktime:
   # Code from module multiarch:
@@ -174,13 +175,13 @@ gl_STDIO_H
 gl_STDLIB_H
 gl_FUNC_GNU_STRFTIME
 gl_FUNC_STRTOIMAX
-if test "$ac_cv_have_decl_strtoimax" != yes && test $ac_cv_func_strtoimax = no; then
+if test $ac_cv_func_strtoimax = no; then
   AC_LIBOBJ([strtoimax])
   gl_PREREQ_STRTOIMAX
 fi
 gl_INTTYPES_MODULE_INDICATOR([strtoimax])
 gl_FUNC_STRTOUMAX
-if test "$ac_cv_have_decl_strtoumax" != yes && test $ac_cv_func_strtoumax = no; then
+if test $ac_cv_func_strtoumax = no; then
   AC_LIBOBJ([strtoumax])
   gl_PREREQ_STRTOUMAX
 fi
@@ -297,16 +298,16 @@ gl_STDLIB_MODULE_INDICATOR([strtoull])
   if test $HAVE_READLINK = 0 || test $REPLACE_READLINK = 1; then
     func_gl_gnulib_m4code_stat
   fi
-  if test "$ac_cv_have_decl_strtoimax" != yes && test $ac_cv_func_strtoimax = no; then
+  if test $ac_cv_func_strtoimax = no; then
     func_gl_gnulib_m4code_verify
   fi
-  if test "$ac_cv_have_decl_strtoimax" != yes && test $ac_cv_func_strtoimax = no && test $ac_cv_type_long_long_int = yes; then
+  if test $ac_cv_func_strtoimax = no && test $ac_cv_type_long_long_int = yes; then
     func_gl_gnulib_m4code_strtoll
   fi
-  if test "$ac_cv_have_decl_strtoumax" != yes && test $ac_cv_func_strtoumax = no; then
+  if test $ac_cv_func_strtoumax = no; then
     func_gl_gnulib_m4code_verify
   fi
-  if test "$ac_cv_have_decl_strtoumax" != yes && test $ac_cv_func_strtoumax = no && test $ac_cv_type_unsigned_long_long_int = yes; then
+  if test $ac_cv_func_strtoumax = no && test $ac_cv_type_unsigned_long_long_int = yes; then
     func_gl_gnulib_m4code_strtoull
   fi
   m4_pattern_allow([^gl_GNULIB_ENABLED_])
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4
index 6b5923a0ea..8fc448fdc8 100644
--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@@ -1,4 +1,4 @@
-# gnulib-common.m4 serial 28
+# gnulib-common.m4 serial 30
 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,
@@ -211,6 +211,60 @@ m4_ifndef([AS_VAR_IF],
 [m4_define([AS_VAR_IF],
 [AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
 
+# gl_PROG_AR_RANLIB
+# Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler.
+# The user can set the variables AR, ARFLAGS, RANLIB if he wants to override
+# the values.
+AC_DEFUN([gl_PROG_AR_RANLIB],
+[
+  dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler
+  dnl as "cc", and GCC as "gcc". They have different object file formats and
+  dnl library formats. In particular, the GNU binutils programs ar, ranlib
+  dnl produce libraries that work only with gcc, not with cc.
+  AC_REQUIRE([AC_PROG_CC])
+  AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler],
+    [
+      AC_EGREP_CPP([Amsterdam],
+        [
+#ifdef __ACK__
+Amsterdam
+#endif
+        ],
+        [gl_cv_c_amsterdam_compiler=yes],
+        [gl_cv_c_amsterdam_compiler=no])
+    ])
+  if test -z "$AR"; then
+    if test $gl_cv_c_amsterdam_compiler = yes; then
+      AR='cc -c.a'
+      if test -z "$ARFLAGS"; then
+        ARFLAGS='-o'
+      fi
+    else
+      dnl Use the Automake-documented default values for AR and ARFLAGS,
+      dnl but prefer ${host}-ar over ar (useful for cross-compiling).
+      AC_CHECK_TOOL([AR], [ar], [ar])
+      if test -z "$ARFLAGS"; then
+        ARFLAGS='cru'
+      fi
+    fi
+  else
+    if test -z "$ARFLAGS"; then
+      ARFLAGS='cru'
+    fi
+  fi
+  AC_SUBST([AR])
+  AC_SUBST([ARFLAGS])
+  if test -z "$RANLIB"; then
+    if test $gl_cv_c_amsterdam_compiler = yes; then
+      RANLIB=':'
+    else
+      dnl Use the ranlib program if it is available.
+      AC_PROG_RANLIB
+    fi
+  fi
+  AC_SUBST([RANLIB])
+])
+
 # AC_PROG_MKDIR_P
 # is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
 # for interoperability with automake-1.9.6 from autoconf-2.62.
diff --git a/m4/largefile.m4 b/m4/largefile.m4
index 6986244b39..d83fea1233 100644
--- a/m4/largefile.m4
+++ b/m4/largefile.m4
@@ -19,8 +19,8 @@ m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES],
     incorrectly reject 9223372036854775807.  */
 @%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721
-		       && LARGE_OFF_T % 2147483647 == 1)
-		      ? 1 : -1]];[]dnl
+                       && LARGE_OFF_T % 2147483647 == 1)
+                      ? 1 : -1]];[]dnl
 ])
 
 
@@ -58,7 +58,7 @@ rm -rf conftest*[]dnl
 # http://www.unix-systems.org/version2/whatsnew/lfs20mar.html
 AC_DEFUN([AC_SYS_LARGEFILE],
 [AC_ARG_ENABLE(largefile,
-	       [  --disable-largefile     omit support for large files])
+               [  --disable-largefile     omit support for large files])
 if test "$enable_largefile" != no; then
 
   AC_CACHE_CHECK([for special C compiler options needed for large files],
@@ -67,13 +67,13 @@ if test "$enable_largefile" != no; then
      if test "$GCC" != yes; then
        ac_save_CC=$CC
        while :; do
-	 # IRIX 6.2 and later do not support large files by default,
-	 # so use the C compiler's -n32 option if that helps.
-	 AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])])
-	 AC_COMPILE_IFELSE([], [break])
-	 CC="$CC -n32"
-	 AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break])
-	 break
+         # IRIX 6.2 and later do not support large files by default,
+         # so use the C compiler's -n32 option if that helps.
+         AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])])
+         AC_COMPILE_IFELSE([], [break])
+         CC="$CC -n32"
+         AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break])
+         break
        done
        CC=$ac_save_CC
        rm -f conftest.$ac_ext
diff --git a/m4/pthread_sigmask.m4 b/m4/pthread_sigmask.m4
index f3522496cd..f06bc119ff 100644
--- a/m4/pthread_sigmask.m4
+++ b/m4/pthread_sigmask.m4
@@ -1,4 +1,4 @@
-# pthread_sigmask.m4 serial 11
+# pthread_sigmask.m4 serial 12
 dnl Copyright (C) 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,
@@ -13,8 +13,8 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK],
   dnl Some packages like Emacs use --avoid=threadlib.
   dnl Write the symbol in such a way that it does not cause 'aclocal' to pick
   dnl the threadlib.m4 file that is installed in $PREFIX/share/aclocal/.
-  m4_ifdef([gl_[]THREADLIB], [
-    AC_REQUIRE([gl_[]THREADLIB])
+  m4_ifdef([gl_][THREADLIB], [
+    AC_REQUIRE([gl_][THREADLIB])
 
     if test "$gl_threads_api" = posix; then
       if test $ac_cv_func_pthread_sigmask = yes; then
diff --git a/m4/strtoimax.m4 b/m4/strtoimax.m4
index 47fb1bc9c3..a8d0b69c20 100644
--- a/m4/strtoimax.m4
+++ b/m4/strtoimax.m4
@@ -1,4 +1,4 @@
-# strtoimax.m4 serial 10
+# strtoimax.m4 serial 11
 dnl Copyright (C) 2002-2004, 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,
@@ -8,11 +8,11 @@ AC_DEFUN([gl_FUNC_STRTOIMAX],
 [
   AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
 
+  dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+  AC_CHECK_FUNCS_ONCE([strtoimax])
   AC_CHECK_DECLS_ONCE([strtoimax])
   if test "$ac_cv_have_decl_strtoimax" != yes; then
     HAVE_DECL_STRTOIMAX=0
-
-    AC_CHECK_FUNCS([strtoimax])
   fi
 ])
 
diff --git a/m4/strtoumax.m4 b/m4/strtoumax.m4
index 58b310de85..1ddf6820e3 100644
--- a/m4/strtoumax.m4
+++ b/m4/strtoumax.m4
@@ -1,4 +1,4 @@
-# strtoumax.m4 serial 10
+# strtoumax.m4 serial 11
 dnl Copyright (C) 2002-2004, 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,
@@ -8,11 +8,11 @@ AC_DEFUN([gl_FUNC_STRTOUMAX],
 [
   AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
 
+  dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+  AC_CHECK_FUNCS_ONCE([strtoumax])
   AC_CHECK_DECLS_ONCE([strtoumax])
   if test "$ac_cv_have_decl_strtoumax" != yes; then
     HAVE_DECL_STRTOUMAX=0
-
-    AC_CHECK_FUNCS([strtoumax])
   fi
 ])