--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-17  Jim Meyering  <jim@meyering.net>
+
+	* fts.m4: New file, from coreutils.
+
 2005-05-14  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Sync from coreutils.

new file mode 100644
--- /dev/null
+++ b/m4/fts.m4
@@ -0,0 +1,36 @@
+#serial 2
+dnl Copyright (C) 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,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_FTS],
+[
+  AC_LIBSOURCES([fts.c, fts_.h])
+
+  dnl Use this version of fts unconditionally, since the GNU libc and
+  dnl NetBSD versions have bugs and/or unnecessary limitations.
+  AC_LIBOBJ([fts])
+
+  dnl Prerequisites of lib/fts.c.
+
+  # Checks for header files.
+  AC_REQUIRE([AC_HEADER_DIRENT])
+  AC_REQUIRE([AC_HEADER_STDC])
+  AC_CHECK_HEADERS_ONCE([fcntl.h inttypes.h stddef.h stdint.h])
+  AC_CHECK_HEADERS_ONCE([stdlib.h string.h sys/param.h unistd.h])
+
+  # Checks for typedefs, structures, and compiler characteristics.
+  AC_REQUIRE([AM_STDBOOL_H])
+  AC_REQUIRE([AC_C_CONST])
+  AC_REQUIRE([AC_TYPE_SIZE_T])
+  AC_REQUIRE([gt_INTTYPES_PRI])
+  AC_CHECK_TYPES([ptrdiff_t])
+
+  # Checks for library functions.
+  AC_REQUIRE([AC_FUNC_CLOSEDIR_VOID])
+  AC_REQUIRE([AC_FUNC_LSTAT])
+  AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
+  AC_REQUIRE([AC_FUNC_STAT])
+  AC_CHECK_FUNCS_ONCE([fchdir memmove memset strrchr])
+])