1# generated automatically by aclocal 1.15.1 -*- Autoconf -*- 2 3# Copyright (C) 1996-2017 Free Software Foundation, Inc. 4 5# This file is free software; the Free Software Foundation 6# gives unlimited permission to copy and/or distribute it, 7# with or without modifications, as long as this notice is preserved. 8 9# This program is distributed in the hope that it will be useful, 10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without 11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A 12# PARTICULAR PURPOSE. 13 14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) 15m4_ifndef([AC_AUTOCONF_VERSION], 16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, 18[m4_warning([this file was generated for autoconf 2.69. 19You have another version of autoconf. It may work, but is not guaranteed to. 20If you have problems, you may need to regenerate the build system entirely. 21To do so, use the procedure documented by the package, typically 'autoreconf'.])]) 22 23# =========================================================================== 24# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html 25# =========================================================================== 26# 27# SYNOPSIS 28# 29# AX_REQUIRE_DEFINED(MACRO) 30# 31# DESCRIPTION 32# 33# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have 34# been defined and thus are available for use. This avoids random issues 35# where a macro isn't expanded. Instead the configure script emits a 36# non-fatal: 37# 38# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found 39# 40# It's like AC_REQUIRE except it doesn't expand the required macro. 41# 42# Here's an example: 43# 44# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG]) 45# 46# LICENSE 47# 48# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org> 49# 50# Copying and distribution of this file, with or without modification, are 51# permitted in any medium without royalty provided the copyright notice 52# and this notice are preserved. This file is offered as-is, without any 53# warranty. 54 55#serial 2 56 57AC_DEFUN([AX_REQUIRE_DEFINED], [dnl 58 m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])]) 59])dnl AX_REQUIRE_DEFINED 60 61# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 62# serial 12 (pkg-config-0.29.2) 63 64dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 65dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com> 66dnl 67dnl This program is free software; you can redistribute it and/or modify 68dnl it under the terms of the GNU General Public License as published by 69dnl the Free Software Foundation; either version 2 of the License, or 70dnl (at your option) any later version. 71dnl 72dnl This program is distributed in the hope that it will be useful, but 73dnl WITHOUT ANY WARRANTY; without even the implied warranty of 74dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 75dnl General Public License for more details. 76dnl 77dnl You should have received a copy of the GNU General Public License 78dnl along with this program; if not, write to the Free Software 79dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 80dnl 02111-1307, USA. 81dnl 82dnl As a special exception to the GNU General Public License, if you 83dnl distribute this file as part of a program that contains a 84dnl configuration script generated by Autoconf, you may include it under 85dnl the same distribution terms that you use for the rest of that 86dnl program. 87 88dnl PKG_PREREQ(MIN-VERSION) 89dnl ----------------------- 90dnl Since: 0.29 91dnl 92dnl Verify that the version of the pkg-config macros are at least 93dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 94dnl installed version of pkg-config, this checks the developer's version 95dnl of pkg.m4 when generating configure. 96dnl 97dnl To ensure that this macro is defined, also add: 98dnl m4_ifndef([PKG_PREREQ], 99dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 100dnl 101dnl See the "Since" comment for each macro you use to see what version 102dnl of the macros you require. 103m4_defun([PKG_PREREQ], 104[m4_define([PKG_MACROS_VERSION], [0.29.2]) 105m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 106 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 107])dnl PKG_PREREQ 108 109dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 110dnl ---------------------------------- 111dnl Since: 0.16 112dnl 113dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 114dnl first found in the path. 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If MIN-VERSION is not specified, 0.9.0 is 116dnl used since that's the first version where most current features of 117dnl pkg-config existed. 118AC_DEFUN([PKG_PROG_PKG_CONFIG], 119[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 120m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 121m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 122AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 123AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 124AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 125 126if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 127 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 128fi 129if test -n "$PKG_CONFIG"; then 130 _pkg_min_version=m4_default([$1], [0.9.0]) 131 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 132 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 133 AC_MSG_RESULT([yes]) 134 else 135 AC_MSG_RESULT([no]) 136 PKG_CONFIG="" 137 fi 138fi[]dnl 139])dnl PKG_PROG_PKG_CONFIG 140 141dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 142dnl ------------------------------------------------------------------- 143dnl Since: 0.18 144dnl 145dnl Check to see whether a particular set of modules exists. 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