1 files changed, 105 insertions, 0 deletions
diff --git a/lib/autoconf/autoconf.m4 b/lib/autoconf/autoconf.m4
new file mode 100644
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+++ b/lib/autoconf/autoconf.m4
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+# This file is part of Autoconf.                -*- Autoconf -*-
+# Driver that loads the Autoconf macro files.
+#
+# Copyright (C) 1994, 1999-2002, 2006, 2008-2012 Free Software
+# Foundation, Inc.
+
+# This file is part of Autoconf.  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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the Autoconf Configure Script Exception,
+# version 3.0, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License
+# and a copy of the Autoconf Configure Script Exception along with
+# this program; see the files COPYINGv3 and COPYING.EXCEPTION
+# respectively.  If not, see <http://www.gnu.org/licenses/>.
+
+# Written by David MacKenzie and many others.
+#
+# Do not sinclude acsite.m4 here, because it may not be installed
+# yet when Autoconf is frozen.
+# Do not sinclude ./aclocal.m4 here, to prevent it from being frozen.
+
+# general includes some AU_DEFUN.
+m4_include([autoconf/autoupdate.m4])
+m4_include([autoconf/autoscan.m4])
+m4_include([autoconf/general.m4])
+m4_include([autoconf/status.m4])
+m4_include([autoconf/autoheader.m4])
+m4_include([autoconf/autotest.m4])
+m4_include([autoconf/programs.m4])
+m4_include([autoconf/lang.m4])
+m4_include([autoconf/c.m4])
+m4_include([autoconf/erlang.m4])
+m4_include([autoconf/fortran.m4])
+m4_include([autoconf/go.m4])
+m4_include([autoconf/functions.m4])
+m4_include([autoconf/headers.m4])
+m4_include([autoconf/types.m4])
+m4_include([autoconf/libs.m4])
+m4_include([autoconf/specific.m4])
+m4_include([autoconf/oldnames.m4])
+
+# We discourage the use of the non prefixed macro names: M4sugar maps
+# all the builtins into `m4_'.  Autoconf has been converted to these
+# names too.  But users may still depend upon these, so reestablish
+# them.
+
+# In order to copy pushdef stacks, m4_copy temporarily destroys the
+# current pushdef stack.  But these builtins are so primitive that:
+#   1. they should not have more than one pushdef definition
+#   2. undefining the pushdef stack to copy breaks m4_copy
+# Hence, we temporarily restore a simpler m4_copy.
+
+m4_pushdef([m4_copy], [m4_define([$2], m4_defn([$1]))])
+
+m4_copy_unm4([m4_builtin])
+m4_copy_unm4([m4_changequote])
+m4_copy_unm4([m4_decr])
+m4_copy_unm4([m4_define])
+m4_copy_unm4([m4_defn])
+m4_copy_unm4([m4_divert])
+m4_copy_unm4([m4_divnum])
+m4_copy_unm4([m4_errprint])
+m4_copy_unm4([m4_esyscmd])
+m4_copy_unm4([m4_ifdef])
+m4_copy([m4_if], [ifelse])
+m4_copy_unm4([m4_incr])
+m4_copy_unm4([m4_index])
+m4_copy_unm4([m4_indir])
+m4_copy_unm4([m4_len])
+m4_copy([m4_bpatsubst], [patsubst])
+m4_copy_unm4([m4_popdef])
+m4_copy_unm4([m4_pushdef])
+m4_copy([m4_bregexp], [regexp])
+m4_copy_unm4([m4_sinclude])
+m4_copy_unm4([m4_syscmd])
+m4_copy_unm4([m4_sysval])
+m4_copy_unm4([m4_traceoff])
+m4_copy_unm4([m4_traceon])
+m4_copy_unm4([m4_translit])
+m4_copy_unm4([m4_undefine])
+m4_copy_unm4([m4_undivert])
+
+m4_popdef([m4_copy])
+
+# Yet some people have started to use m4_patsubst and m4_regexp.
+m4_define([m4_patsubst],
+[m4_expand_once([m4_warn([syntax],
+		 [do not use m4_patsubst: use patsubst or m4_bpatsubst])])dnl
+patsubst($@)])
+
+m4_define([m4_regexp],
+[m4_expand_once([m4_warn([syntax],
+		 [do not use m4_regexp: use regexp or m4_bregexp])])dnl
+regexp($@)])