Merge from gnulib

This avoids incorporating the following, which I suspect are
more trouble for Emacs than they’re worth:
2017-04-29 stat, fstat: fix time_t etc. on native Windows platforms
* admin/merge-gnulib (AVOIDED_MODULES): Avoid stat, too.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib/pathmax.h, lib/stat.c, m4/pathmax.m4, m4/stat.m4: Remove.

3 files changed, 1 insertions, 248 deletions

diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in
index 4a76f0a5aed..af26648c0e0 100644
--- a/lib/gnulib.mk.in
+++ b/lib/gnulib.mk.in
@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=setenv --avoid=sigprocmask --avoid=stdarg --avoid=stdbool --avoid=threadlib --avoid=unsetenv --gnu-make --makefile-name=gnulib.mk.in --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt binary-io byteswap c-ctype c-strcase careadlinkat close-stream count-leading-zeros count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode filevercmp flexmember fstatat fsync getloadavg getopt-gnu gettime gettimeofday gitlog-to-changelog ignore-value intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qcopy-acl readlink readlinkat sig2str socklen stat-time std-gnu11 stdalign stddef stdio stpcpy strftime strtoimax strtoumax symlink sys_stat sys_time time time_r time_rz timegm timer-time timespec-add timespec-sub update-copyright utimens vla warnings
+# Reproduce by: gnulib-tool --import --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=setenv --avoid=sigprocmask --avoid=stat --avoid=stdarg --avoid=stdbool --avoid=threadlib --avoid=unsetenv --gnu-make --makefile-name=gnulib.mk.in --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt binary-io byteswap c-ctype c-strcase careadlinkat close-stream count-leading-zeros count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode filevercmp flexmember fstatat fsync getloadavg getopt-gnu gettime gettimeofday gitlog-to-changelog ignore-value intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qcopy-acl readlink readlinkat sig2str socklen stat-time std-gnu11 stdalign stddef stdio stpcpy strftime strtoimax strtoumax symlink sys_stat sys_time time time_r time_rz timegm timer-time timespec-add timespec-sub update-copyright utimens vla warnings
 
 
 MOSTLYCLEANFILES += core *.stackdump
@@ -885,9 +885,7 @@ gl_GNULIB_ENABLED_dosname = @gl_GNULIB_ENABLED_dosname@
 gl_GNULIB_ENABLED_euidaccess = @gl_GNULIB_ENABLED_euidaccess@
 gl_GNULIB_ENABLED_getdtablesize = @gl_GNULIB_ENABLED_getdtablesize@
 gl_GNULIB_ENABLED_getgroups = @gl_GNULIB_ENABLED_getgroups@
-gl_GNULIB_ENABLED_pathmax = @gl_GNULIB_ENABLED_pathmax@
 gl_GNULIB_ENABLED_secure_getenv = @gl_GNULIB_ENABLED_secure_getenv@
-gl_GNULIB_ENABLED_stat = @gl_GNULIB_ENABLED_stat@
 gl_GNULIB_ENABLED_strtoll = @gl_GNULIB_ENABLED_strtoll@
 gl_GNULIB_ENABLED_strtoull = @gl_GNULIB_ENABLED_strtoull@
 gl_GNULIB_ENABLED_tempname = @gl_GNULIB_ENABLED_tempname@
@@ -1765,17 +1763,6 @@ EXTRA_DIST += openat.h
 endif
 ## end   gnulib module openat-h
 
-## begin gnulib module pathmax
-ifeq (,$(OMIT_GNULIB_MODULE_pathmax))
-
-ifneq (,$(gl_GNULIB_ENABLED_pathmax))
-
-endif
-EXTRA_DIST += pathmax.h
-
-endif
-## end   gnulib module pathmax
-
 ## begin gnulib module pipe2
 ifeq (,$(OMIT_GNULIB_MODULE_pipe2))
 
@@ -1982,19 +1969,6 @@ EXTRA_DIST += warn-on-use.h
 endif
 ## end   gnulib module snippet/warn-on-use
 
-## begin gnulib module stat
-ifeq (,$(OMIT_GNULIB_MODULE_stat))
-
-ifneq (,$(gl_GNULIB_ENABLED_stat))
-
-endif
-EXTRA_DIST += stat.c
-
-EXTRA_libgnu_a_SOURCES += stat.c
-
-endif
-## end   gnulib module stat
-
 ## begin gnulib module stat-time
 ifeq (,$(OMIT_GNULIB_MODULE_stat-time))
 
diff --git a/lib/pathmax.h b/lib/pathmax.h
deleted file mode 100644
index aa0730e27a8..00000000000
--- a/lib/pathmax.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* Define PATH_MAX somehow.  Requires sys/types.h.
-   Copyright (C) 1992, 1999, 2001, 2003, 2005, 2009-2017 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
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _PATHMAX_H
-# define _PATHMAX_H
-
-/* POSIX:2008 defines PATH_MAX to be the maximum number of bytes in a filename,
-   including the terminating NUL byte.
-   <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/limits.h.html>
-   PATH_MAX is not defined on systems which have no limit on filename length,
-   such as GNU/Hurd.
-
-   This file does *not* define PATH_MAX always.  Programs that use this file
-   can handle the GNU/Hurd case in several ways:
-     - Either with a package-wide handling, or with a per-file handling,
-     - Either through a
-         #ifdef PATH_MAX
-       or through a fallback like
-         #ifndef PATH_MAX
-         # define PATH_MAX 8192
-         #endif
-       or through a fallback like
-         #ifndef PATH_MAX
-         # define PATH_MAX pathconf ("/", _PC_PATH_MAX)
-         #endif
- */
-
-# include <unistd.h>
-
-# include <limits.h>
-
-# ifndef _POSIX_PATH_MAX
-#  define _POSIX_PATH_MAX 256
-# endif
-
-/* Don't include sys/param.h if it already has been.  */
-# if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
-#  include <sys/param.h>
-# endif
-
-# if !defined PATH_MAX && defined MAXPATHLEN
-#  define PATH_MAX MAXPATHLEN
-# endif
-
-# ifdef __hpux
-/* On HP-UX, PATH_MAX designates the maximum number of bytes in a filename,
-   *not* including the terminating NUL byte, and is set to 1023.
-   Additionally, when _XOPEN_SOURCE is defined to 500 or more, PATH_MAX is
-   not defined at all any more.  */
-#  undef PATH_MAX
-#  define PATH_MAX 1024
-# endif
-
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-/* The page "Naming Files, Paths, and Namespaces" on msdn.microsoft.com,
-   section "Maximum Path Length Limitation",
-   <http://msdn.microsoft.com/en-us/library/aa365247(v=vs.85).aspx#maxpath>
-   explains that the maximum size of a filename, including the terminating
-   NUL byte, is 260 = 3 + 256 + 1.
-   This is the same value as
-     - FILENAME_MAX in <stdio.h>,
-     - _MAX_PATH in <stdlib.h>,
-     - MAX_PATH in <windef.h>.
-   Undefine the original value, because mingw's <limits.h> gets it wrong.  */
-#  undef PATH_MAX
-#  define PATH_MAX 260
-# endif
-
-#endif /* _PATHMAX_H */
diff --git a/lib/stat.c b/lib/stat.c
deleted file mode 100644
index 7e7c2f6f887..00000000000
--- a/lib/stat.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/* Work around platform bugs in stat.
-   Copyright (C) 2009-2017 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
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* 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.  */
-#include <sys/types.h>
-#include <sys/stat.h>
-#undef __need_system_sys_stat_h
-
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-# if _GL_WINDOWS_64_BIT_ST_SIZE
-#  undef stat /* avoid warning on mingw64 with _FILE_OFFSET_BITS=64 */
-#  define stat _stati64
-#  define REPLACE_FUNC_STAT_DIR 1
-#  undef REPLACE_FUNC_STAT_FILE
-# elif REPLACE_FUNC_STAT_FILE
-/* mingw64 has a broken stat() function, based on _stat(), in libmingwex.a.
-   Bypass it.  */
-#  define stat _stat
-#  define REPLACE_FUNC_STAT_DIR 1
-#  undef REPLACE_FUNC_STAT_FILE
-# endif
-#endif
-
-static int
-orig_stat (const char *filename, struct stat *buf)
-{
-  return stat (filename, buf);
-}
-
-/* Specification.  */
-/* Write "sys/stat.h" here, not <sys/stat.h>, otherwise OSF/1 5.1 DTK cc
-   eliminates this include because of the preliminary #include <sys/stat.h>
-   above.  */
-#include "sys/stat.h"
-
-#include <errno.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <string.h>
-#include "dosname.h"
-#include "verify.h"
-
-#if REPLACE_FUNC_STAT_DIR
-# include "pathmax.h"
-  /* The only known systems where REPLACE_FUNC_STAT_DIR is needed also
-     have a constant PATH_MAX.  */
-# ifndef PATH_MAX
-#  error "Please port this replacement to your platform"
-# endif
-#endif
-
-/* Store information about NAME into ST.  Work around bugs with
-   trailing slashes.  Mingw has other bugs (such as st_ino always
-   being 0 on success) which this wrapper does not work around.  But
-   at least this implementation provides the ability to emulate fchdir
-   correctly.  */
-
-int
-rpl_stat (char const *name, struct stat *st)
-{
-  int result = orig_stat (name, st);
-#if REPLACE_FUNC_STAT_FILE
-  /* Solaris 9 mistakenly succeeds when given a non-directory with a
-     trailing slash.  */
-  if (result == 0 && !S_ISDIR (st->st_mode))
-    {
-      size_t len = strlen (name);
-      if (ISSLASH (name[len - 1]))
-        {
-          errno = ENOTDIR;
-          return -1;
-        }
-    }
-#endif /* REPLACE_FUNC_STAT_FILE */
-#if REPLACE_FUNC_STAT_DIR
-
-  if (result == -1 && errno == ENOENT)
-    {
-      /* Due to mingw's oddities, there are some directories (like
-         c:\) where stat() only succeeds with a trailing slash, and
-         other directories (like c:\windows) where stat() only
-         succeeds without a trailing slash.  But we want the two to be
-         synonymous, since chdir() manages either style.  Likewise, Mingw also
-         reports ENOENT for names longer than PATH_MAX, when we want
-         ENAMETOOLONG, and for stat("file/"), when we want ENOTDIR.
-         Fortunately, mingw PATH_MAX is small enough for stack
-         allocation.  */
-      char fixed_name[PATH_MAX + 1] = {0};
-      size_t len = strlen (name);
-      bool check_dir = false;
-      verify (PATH_MAX <= 4096);
-      if (PATH_MAX <= len)
-        errno = ENAMETOOLONG;
-      else if (len)
-        {
-          strcpy (fixed_name, name);
-          if (ISSLASH (fixed_name[len - 1]))
-            {
-              check_dir = true;
-              while (len && ISSLASH (fixed_name[len - 1]))
-                fixed_name[--len] = '\0';
-              if (!len)
-                fixed_name[0] = '/';
-            }
-          else
-            fixed_name[len++] = '/';
-          result = orig_stat (fixed_name, st);
-          if (result == 0 && check_dir && !S_ISDIR (st->st_mode))
-            {
-              result = -1;
-              errno = ENOTDIR;
-            }
-        }
-    }
-#endif /* REPLACE_FUNC_STAT_DIR */
-  return result;
-}