1# generated automatically by aclocal 1.11.1 -*- Autoconf -*- 2 3# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 4# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. 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 14# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 15# serial 1 (pkg-config-0.24) 16# 17# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 18# 19# This program is free software; you can redistribute it and/or modify 20# it under the terms of the GNU General Public License as published by 21# the Free Software Foundation; either version 2 of the License, or 22# (at your option) any later version. 23# 24# This program is distributed in the hope that it will be useful, but 25# WITHOUT ANY WARRANTY; without even the implied warranty of 26# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 27# General Public License for more details. 28# 29# You should have received a copy of the GNU General Public License 30# along with this program; if not, write to the Free Software 31# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 32# 33# As a special exception to the GNU General Public License, if you 34# distribute this file as part of a program that contains a 35# configuration script generated by Autoconf, you may include it under 36# the same distribution terms that you use for the rest of that program. 37 38# PKG_PROG_PKG_CONFIG([MIN-VERSION]) 39# ---------------------------------- 40AC_DEFUN([PKG_PROG_PKG_CONFIG], 41[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 42m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) 43AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 44AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 45AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 46 47if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 48 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 49fi 50if test -n "$PKG_CONFIG"; then 51 _pkg_min_version=m4_default([$1], [0.9.0]) 52 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 53 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 54 AC_MSG_RESULT([yes]) 55 else 56 AC_MSG_RESULT([no]) 57 PKG_CONFIG="" 58 fi 59fi[]dnl 60])# PKG_PROG_PKG_CONFIG 61 62# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 63# 64# Check to see whether a particular set of modules exists. Similar 65# to PKG_CHECK_MODULES(), but does not set variables or print errors. 66# 67# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 68# only at the first occurence in configure.ac, so if the first place 69# it's called might be skipped (such as if it is within an "if", you 70# have to call PKG_CHECK_EXISTS manually 71# -------------------------------------------------------------- 72AC_DEFUN([PKG_CHECK_EXISTS], 73[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 74if test -n "$PKG_CONFIG" && \ 75 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 76 m4_default([$2], [:]) 77m4_ifvaln([$3], [else 78 $3])dnl 79fi]) 80 81# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 82# --------------------------------------------- 83m4_define([_PKG_CONFIG], 84[if test -n "$$1"; then 85 pkg_cv_[]$1="$$1" 86 elif test -n "$PKG_CONFIG"; then 87 PKG_CHECK_EXISTS([$3], 88 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], 89 [pkg_failed=yes]) 90 else 91 pkg_failed=untried 92fi[]dnl 93])# _PKG_CONFIG 94 95# _PKG_SHORT_ERRORS_SUPPORTED 96# ----------------------------- 97AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 98[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 99if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 100 _pkg_short_errors_supported=yes 101else 102 _pkg_short_errors_supported=no 103fi[]dnl 104])# _PKG_SHORT_ERRORS_SUPPORTED 105 106 107# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 108# [ACTION-IF-NOT-FOUND]) 109# 110# 111# Note that if there is a possibility the first call to 112# PKG_CHECK_MODULES might not happen, you should be sure to include an 113# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 114# 115# 116# -------------------------------------------------------------- 117AC_DEFUN([PKG_CHECK_MODULES], 118[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 119AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 120AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 121 122pkg_failed=no 123AC_MSG_CHECKING([for $1]) 124 125_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 126_PKG_CONFIG([$1][_LIBS], [libs], [$2]) 127 128m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 129and $1[]_LIBS to avoid the need to call pkg-config. 130See the pkg-config man page for more details.]) 131 132if test $pkg_failed = yes; then 133 AC_MSG_RESULT([no]) 134 _PKG_SHORT_ERRORS_SUPPORTED 135 if test $_pkg_short_errors_supported = yes; then 136 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` 137 else 138 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` 139 fi 140 # Put the nasty error message in config.log where it belongs 141 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 142 143 m4_default([$4], [AC_MSG_ERROR( 144[Package requirements ($2) were not met: 145 146$$1_PKG_ERRORS 147 148Consider adjusting the PKG_CONFIG_PATH environment variable if you 149installed software in a non-standard prefix. 150 151_PKG_TEXT])[]dnl 152 ]) 153elif test $pkg_failed = untried; then 154 AC_MSG_RESULT([no]) 155 m4_default([$4], [AC_MSG_FAILURE( 156[The pkg-config script could not be found or is too old. Make sure it 157is in your PATH or set the PKG_CONFIG environment variable to the full 158path to pkg-config. 159 160_PKG_TEXT 161 162To get pkg-config, see <http://pkg-config.freedesktop.org/>.])dnl 163 ]) 164else 165 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 166 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 167 AC_MSG_RESULT([yes]) 168 $3 169fi[]dnl 170])# PKG_CHECK_MODULES 171 172