--- /dev/null
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_append_to_file.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_APPEND_TO_FILE([FILE],[DATA])
+#
+# DESCRIPTION
+#
+# Appends the specified data to the specified file.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Tom Howard <tomhoward@users.sf.net>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 7
+
+AC_DEFUN([AX_APPEND_TO_FILE],[
+AC_REQUIRE([AX_FILE_ESCAPES])
+printf "$2" >> "$1"
+])