1 # generated automatically by aclocal 1.10 -*- Autoconf -*-
3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 # 2005, 2006 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.
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
14 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
16 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
18 # This program is free software; you can redistribute it and/or modify
19 # it under the terms of the GNU General Public License as published by
20 # the Free Software Foundation; either version 2 of the License, or
21 # (at your option) any later version.
23 # This program is distributed in the hope that it will be useful, but
24 # WITHOUT ANY WARRANTY; without even the implied warranty of
25 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 # General Public License for more details.
28 # You should have received a copy of the GNU General Public License
29 # along with this program; if not, write to the Free Software
30 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
32 # As a special exception to the GNU General Public License, if you
33 # distribute this file as part of a program that contains a
34 # configuration script generated by Autoconf, you may include it under
35 # the same distribution terms that you use for the rest of that program.
37 # PKG_PROG_PKG_CONFIG([MIN-VERSION])
38 # ----------------------------------
39 AC_DEFUN([PKG_PROG_PKG_CONFIG],
40 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
41 m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
42 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
43 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
44 AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
46 if test -n "$PKG_CONFIG"; then
47 _pkg_min_version=m4_default([$1], [0.9.0])
48 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
49 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
57 ])# PKG_PROG_PKG_CONFIG
59 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
61 # Check to see whether a particular set of modules exists. Similar
62 # to PKG_CHECK_MODULES(), but does not set variables or print errors.
65 # Similar to PKG_CHECK_MODULES, make sure that the first instance of
66 # this or PKG_CHECK_MODULES is called, or make sure to call
67 # PKG_CHECK_EXISTS manually
68 # --------------------------------------------------------------
69 AC_DEFUN([PKG_CHECK_EXISTS],
70 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
71 if test -n "$PKG_CONFIG" && \
72 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
73 m4_ifval([$2], [$2], [:])
79 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
80 # ---------------------------------------------
81 m4_define([_PKG_CONFIG],
82 [if test -n "$PKG_CONFIG"; then
83 if test -n "$$1"; then
86 PKG_CHECK_EXISTS([$3],
87 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
95 # _PKG_SHORT_ERRORS_SUPPORTED
96 # -----------------------------
97 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
98 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
99 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
100 _pkg_short_errors_supported=yes
102 _pkg_short_errors_supported=no
104 ])# _PKG_SHORT_ERRORS_SUPPORTED
107 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
108 # [ACTION-IF-NOT-FOUND])
111 # Note that if there is a possibility the first call to
112 # PKG_CHECK_MODULES might not happen, you should be sure to include an
113 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
116 # --------------------------------------------------------------
117 AC_DEFUN([PKG_CHECK_MODULES],
118 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
119 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
120 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
123 AC_MSG_CHECKING([for $1])
125 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
126 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
128 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
129 and $1[]_LIBS to avoid the need to call pkg-config.
130 See the pkg-config man page for more details.])
132 if test $pkg_failed = yes; then
133 _PKG_SHORT_ERRORS_SUPPORTED
134 if test $_pkg_short_errors_supported = yes; then
135 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
137 $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
139 # Put the nasty error message in config.log where it belongs
140 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
142 ifelse([$4], , [AC_MSG_ERROR(dnl
143 [Package requirements ($2) were not met:
147 Consider adjusting the PKG_CONFIG_PATH environment variable if you
148 installed software in a non-standard prefix.
154 elif test $pkg_failed = untried; then
155 ifelse([$4], , [AC_MSG_FAILURE(dnl
156 [The pkg-config script could not be found or is too old. Make sure it
157 is in your PATH or set the PKG_CONFIG environment variable to the full
162 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
165 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
166 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
168 ifelse([$3], , :, [$3])
170 ])# PKG_CHECK_MODULES