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documentation: improve documentation of --x509-track
[thirdparty/openvpn.git] / compat.m4
CommitLineData
51bd56f4
ABL
1dnl OpenVPN -- An application to securely tunnel IP networks
2dnl over a single UDP port, with support for SSL/TLS-based
3dnl session authentication and key exchange,
4dnl packet encryption, packet authentication, and
5dnl packet compression.
6dnl
7dnl Copyright (C) 2008-2012 Alon Bar-Lev <alon.barlev@gmail.com>
8dnl
9dnl This program is free software; you can redistribute it and/or modify
10dnl it under the terms of the GNU General Public License as published by
11dnl the Free Software Foundation; either version 2 of the License, or
12dnl (at your option) any later version.
13dnl
14dnl This program is distributed in the hope that it will be useful,
15dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
16dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17dnl GNU General Public License for more details.
18dnl
caa54ac3
DS
19dnl You should have received a copy of the GNU General Public License along
20dnl with this program; if not, write to the Free Software Foundation, Inc.,
21dnl 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
51bd56f4
ABL
22
23dnl Compatibility layer for <autoconf-2.60 <automake-1.10
24dnl REMOVE THIS IN FUTURE!
25
26ifdef(
27 [AS_VAR_IF],
28 ,
29 [
30 AC_DEFUN([AS_VAR_IF], [dnl
31 if test "$$1" = "$2"; then
32 m4_ifval([$3], [$3], [:])
33 else
34 m4_ifval([$4], [$4], [:])
35 fi
36 ])
37 ]
38)
39ifdef(
40 [AC_USE_SYSTEM_EXTENSIONS],
41 ,
42 [AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], [GNU_SOURCE])]
43)
7046ff20
ABL
44ifdef(
45 [AC_PROG_SED],
46 ,
47 [AC_DEFUN([AC_PROG_SED], [AC_CHECK_PROGS([SED], [sed])])]
48)
60c18b45
JS
49ifdef(
50 [PKG_CHECK_VAR],
51 ,
52 [
53 AC_DEFUN([PKG_CHECK_VAR],
54 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
55 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])
56
57 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
58 AS_VAR_COPY([$1], [pkg_cv_][$1])
59
60 AS_VAR_IF([$1], [""], [$5], [$4])
61 ])
62 ]
63)
64
51bd56f4
ABL
65if test -z "${docdir}"; then
66 docdir="\$(datadir)/doc/\$(PACKAGE_NAME)"
67 AC_SUBST([docdir])
68fi
69if test -z "${htmldir}"; then
70 htmldir="\$(docdir)"
71 AC_SUBST([htmldir])
72fi