1 files changed, 0 insertions, 46 deletions
diff --git a/build-aux/m4/m4-rename.m4 b/build-aux/m4/m4-rename.m4
deleted file mode 100644
index faafd1ba..00000000
--- a/build-aux/m4/m4-rename.m4
+++ /dev/null
@@ -1,46 +0,0 @@
-#                                                            -*- Autoconf -*-
-# m4-rename.m4 -- Test the abilities of rename.
-# Written by Eric Blake <ebb9@byu.net>
-#
-# Copyright (C) 2008, 2010, 2013-2014, 2017 Free Software Foundation,
-# Inc.
-#
-# This file is part of GNU M4.
-#
-# GNU M4 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.
-#
-# GNU M4 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/>.
-
-# serial 1
-
-# M4_RENAME
-# ---------
-# Detect platforms like mingw where rename can't move open files.
-AC_DEFUN([M4_RENAME],
-[AC_CACHE_CHECK([whether an open file can be renamed],
-  [M4_cv_func_rename_open_file_works],
-  [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
-      [FILE *f = fopen ("conftest.1", "w+");
-       int result = rename ("conftest.1", "conftest.2");
-       fclose (f); remove ("conftest.1"); remove ("conftest.2");
-       return result;])],
-    [M4_cv_func_rename_open_file_works=yes],
-    [M4_cv_func_rename_open_file_works=no],
-    [M4_cv_func_rename_open_file_works='guessing no'])])
-if test "$M4_cv_func_rename_open_file_works" = yes ; then
-  M4_rename_open_works=1
-else
-  M4_rename_open_works=0
-fi
-AC_DEFINE_UNQUOTED([RENAME_OPEN_FILE_WORKS], [$M4_rename_open_works],
-  [Define to 1 if a file can be renamed while open, or to 0 if not.])
-])