Import filemode module from gnulib.

* .bzrignore: Add lib/sys/.
* Makefile.in (GNULIB_MODULES): Add filemode.
* lib/Makefile.am (MOSTLYCLEANDIRS): New macro.
* lib/filemode.c: Renamed from src/filemode.c and regenerated
from gnulib.  This adds support for some more file types, e.g.,
Cray DMF migrated files.
* lisp/emacs-lisp/find-gc.el (find-gc-source-files): Remove filemode.c.
* lib/filemode.h, lib/sys_stat.in.h, m4/filemode.m4, m4/st_dm_mode.m4:
* m4/sys_stat_h.m4: New files, generated from gnulib.
* aclocal.m4, configure, lib/Makefile.in, lib/gnulib.mk, m4/gl-comp.m4:
Regenerate.

2011-02-20  Paul Eggert  <eggert@cs.ucla.edu>

1 files changed, 23 insertions, 0 deletions

diff --git a/m4/st_dm_mode.m4 b/m4/st_dm_mode.m4
new file mode 100644
index 00000000000..84f74638f12
--- /dev/null
+++ b/m4/st_dm_mode.m4
@@ -0,0 +1,23 @@
+# serial 6
+
+# Copyright (C) 1998-1999, 2001, 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.
+
+# Define HAVE_ST_DM_MODE if struct stat has an st_dm_mode member.
+
+AC_DEFUN([AC_STRUCT_ST_DM_MODE],
+ [AC_CACHE_CHECK([for st_dm_mode in struct stat], [ac_cv_struct_st_dm_mode],
+   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/stat.h>]], [[struct stat s; s.st_dm_mode;]])],
+     [ac_cv_struct_st_dm_mode=yes],
+     [ac_cv_struct_st_dm_mode=no])])
+
+  if test $ac_cv_struct_st_dm_mode = yes; then
+    AC_DEFINE([HAVE_ST_DM_MODE], [1],
+              [Define if struct stat has an st_dm_mode member. ])
+  fi
+ ]
+)