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_]+$]) 42m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 43m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 44AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 45AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 46AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 47 48if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 49 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 50fi 51if test -n "$PKG_CONFIG"; then 52 _pkg_min_version=m4_default([$1], [0.9.0]) 53 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 54 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 55 AC_MSG_RESULT([yes]) 56 else 57 AC_MSG_RESULT([no]) 58 PKG_CONFIG="" 59 fi 60fi[]dnl 61])# PKG_PROG_PKG_CONFIG 62 63# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 64# 65# Check to see whether a particular set of modules exists. Similar 66# to PKG_CHECK_MODULES(), but does not set variables or print errors. 67# 68# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 69# only at the first occurence in configure.ac, so if the first place 70# it's called might be skipped (such as if it is within an "if", you 71# have to call PKG_CHECK_EXISTS manually 72# -------------------------------------------------------------- 73AC_DEFUN([PKG_CHECK_EXISTS], 74[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 75if test -n "$PKG_CONFIG" && \ 76 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 77 m4_default([$2], [:]) 78m4_ifvaln([$3], [else 79 $3])dnl 80fi]) 81 82# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 83# --------------------------------------------- 84m4_define([_PKG_CONFIG], 85[if test -n "$$1"; then 86 pkg_cv_[]$1="$$1" 87 elif test -n "$PKG_CONFIG"; then 88 PKG_CHECK_EXISTS([$3], 89 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` 90 test "x$?" != "x0" && pkg_failed=yes ], 91 [pkg_failed=yes]) 92 else 93 pkg_failed=untried 94fi[]dnl 95])# _PKG_CONFIG 96 97# _PKG_SHORT_ERRORS_SUPPORTED 98# ----------------------------- 99AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 100[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 101if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 102 _pkg_short_errors_supported=yes 103else 104 _pkg_short_errors_supported=no 105fi[]dnl 106])# _PKG_SHORT_ERRORS_SUPPORTED 107 108 109# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 110# [ACTION-IF-NOT-FOUND]) 111# 112# 113# Note that if there is a possibility the first call to 114# PKG_CHECK_MODULES might not happen, you should be sure to include an 115# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 116# 117# 118# -------------------------------------------------------------- 119AC_DEFUN([PKG_CHECK_MODULES], 120[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 121AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 122AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 123 124pkg_failed=no 125AC_MSG_CHECKING([for $1]) 126 127_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 128_PKG_CONFIG([$1][_LIBS], [libs], [$2]) 129 130m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 131and $1[]_LIBS to avoid the need to call pkg-config. 132See the pkg-config man page for more details.]) 133 134if test $pkg_failed = yes; then 135 AC_MSG_RESULT([no]) 136 _PKG_SHORT_ERRORS_SUPPORTED 137 if test $_pkg_short_errors_supported = yes; then 138 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` 139 else 140 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` 141 fi 142 # Put the nasty error message in config.log where it belongs 143 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 144 145 m4_default([$4], [AC_MSG_ERROR( 146[Package requirements ($2) were not met: 147 148$$1_PKG_ERRORS 149 150Consider adjusting the PKG_CONFIG_PATH environment variable if you 151installed software in a non-standard prefix. 152 153_PKG_TEXT])[]dnl 154 ]) 155elif test $pkg_failed = untried; then 156 AC_MSG_RESULT([no]) 157 m4_default([$4], [AC_MSG_FAILURE( 158[The pkg-config script could not be found or is too old. Make sure it 159is in your PATH or set the PKG_CONFIG environment variable to the full 160path to pkg-config. 161 162_PKG_TEXT 163 164To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 165 ]) 166else 167 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 168 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 169 AC_MSG_RESULT([yes]) 170 $3 171fi[]dnl 172])# PKG_CHECK_MODULES 173 174