maint: move the last coreutils-specific files from lib/ to gl/

Convert the few remaining coreutils-specific files in lib/ to
gnulib-style modules under gl/, removing their corresponding .m4
files, since the information recorded in those files is better
stored in module-description file in gl/modules/.
* bootstrap.conf (gnulib_modules): Add new modules:
fd-reopen, buffer-lcm, xfts, strnumcmp.
* gl/lib/buffer-lcm.c: Renamed from the file in lib/.
* gl/lib/buffer-lcm.h: Likewise.
* gl/lib/fd-reopen.c: Likewise.
* gl/lib/fd-reopen.h: Likewise.
* gl/lib/strintcmp.c: Likewise.
* gl/lib/strnumcmp-in.h: Likewise.
* gl/lib/strnumcmp.c: Likewise.
* gl/lib/strnumcmp.h: Likewise.
* gl/lib/xfts.c: Likewise.
* gl/lib/xfts.h: Likewise.
* gl/modules/buffer-lcm: New module-description file.
* gl/modules/fd-reopen: Likewise.
* gl/modules/strnumcmp: Likewise.
* gl/modules/xfts: Likewise.
* m4/fd-reopen.m4: Remove, no longer needed.
* m4/strnumcmp.m4: Likewise.
* m4/xfts.m4: Likewise.
* m4/prereq.m4: Do not AC_REQUIRE the m4 functions from
our just-removed m4/*.m4 files.

1 files changed, 0 insertions, 65 deletions

diff --git a/lib/xfts.c b/lib/xfts.c
deleted file mode 100644
index b19200e20..000000000
--- a/lib/xfts.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* xfts.c -- a wrapper for fts_open
-
-   Copyright (C) 2003-2012 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 Jim Meyering.  */
-
-#include <config.h>
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <assert.h>
-
-#include "xalloc.h"
-#include "xfts.h"
-
-/* Fail with a proper diagnostic if fts_open fails.  */
-
-FTS *
-xfts_open (char * const *argv, int options,
-           int (*compar) (const FTSENT **, const FTSENT **))
-{
-  FTS *fts = fts_open (argv, options | FTS_CWDFD, compar);
-  if (fts == NULL)
-    {
-      /* This can fail in two ways: out of memory or with errno==EINVAL,
-         which indicates it was called with invalid bit_flags.  */
-      assert (errno != EINVAL);
-      xalloc_die ();
-    }
-
-  return fts;
-}
-
-/* When fts_read returns FTS_DC to indicate a directory cycle,
-   it may or may not indicate a real problem.  When a program like
-   chgrp performs a recursive traversal that requires traversing
-   symbolic links, it is *not* a problem.  However, when invoked
-   with "-P -R", it deserves a warning.  The fts_options member
-   records the options that control this aspect of fts's behavior,
-   so test that.  */
-bool
-cycle_warning_required (FTS const *fts, FTSENT const *ent)
-{
-#define ISSET(Fts,Opt) ((Fts)->fts_options & (Opt))
-  /* When dereferencing no symlinks, or when dereferencing only
-     those listed on the command line and we're not processing
-     a command-line argument, then a cycle is a serious problem. */
-  return ((ISSET (fts, FTS_PHYSICAL) && !ISSET (fts, FTS_COMFOLLOW))
-          || (ISSET (fts, FTS_PHYSICAL) && ISSET (fts, FTS_COMFOLLOW)
-              && ent->fts_level != FTS_ROOTLEVEL));
-}