ohair@425: # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- ohair@576: ohair@576: # ohair@576: # Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. ohair@576: # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. ohair@576: # ohair@576: # This code is free software; you can redistribute it and/or modify it ohair@576: # under the terms of the GNU General Public License version 2 only, as ohair@576: # published by the Free Software Foundation. Oracle designates this ohair@576: # particular file as subject to the "Classpath" exception as provided ohair@576: # by Oracle in the LICENSE file that accompanied this code. ohair@576: # ohair@576: # This code is distributed in the hope that it will be useful, but WITHOUT ohair@576: # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ohair@576: # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ohair@576: # version 2 for more details (a copy is included in the LICENSE file that ohair@576: # accompanied this code). ohair@576: # ohair@576: # You should have received a copy of the GNU General Public License version ohair@576: # 2 along with this work; if not, write to the Free Software Foundation, ohair@576: # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. ohair@576: # ohair@576: # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@576: # or visit www.oracle.com if you need additional information or have any ohair@576: # questions. ohair@576: # ohair@576: ohair@425: # ohair@425: # Copyright © 2004 Scott James Remnant . ohair@425: # ohair@425: # This program is free software; you can redistribute it and/or modify ohair@425: # it under the terms of the GNU General Public License as published by ohair@425: # the Free Software Foundation; either version 2 of the License, or ohair@425: # (at your option) any later version. ohair@425: # ohair@425: # This program is distributed in the hope that it will be useful, but ohair@425: # WITHOUT ANY WARRANTY; without even the implied warranty of ohair@425: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ohair@425: # General Public License for more details. ohair@425: # ohair@425: # You should have received a copy of the GNU General Public License ohair@425: # along with this program; if not, write to the Free Software ohair@425: # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ohair@425: # ohair@425: # As a special exception to the GNU General Public License, if you ohair@425: # distribute this file as part of a program that contains a ohair@425: # configuration script generated by Autoconf, you may include it under ohair@425: # the same distribution terms that you use for the rest of that program. ohair@425: ohair@425: # PKG_PROG_PKG_CONFIG([MIN-VERSION]) ohair@425: # ---------------------------------- ohair@425: AC_DEFUN([PKG_PROG_PKG_CONFIG], ohair@425: [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) ohair@425: m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) ohair@425: AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl ohair@425: if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then ohair@425: AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) ohair@425: fi ohair@425: if test -n "$PKG_CONFIG"; then ohair@425: _pkg_min_version=m4_default([$1], [0.9.0]) ohair@425: AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) ohair@425: if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then ohair@425: AC_MSG_RESULT([yes]) ohair@425: else ohair@425: AC_MSG_RESULT([no]) ohair@425: PKG_CONFIG="" ohair@425: fi ohair@425: ohair@425: fi[]dnl ohair@425: ])# PKG_PROG_PKG_CONFIG ohair@425: ohair@425: # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) ohair@425: # ohair@425: # Check to see whether a particular set of modules exists. Similar ohair@425: # to PKG_CHECK_MODULES(), but does not set variables or print errors. ohair@425: # ohair@425: # ohair@425: # Similar to PKG_CHECK_MODULES, make sure that the first instance of ohair@425: # this or PKG_CHECK_MODULES is called, or make sure to call ohair@425: # PKG_CHECK_EXISTS manually ohair@425: # -------------------------------------------------------------- ohair@425: AC_DEFUN([PKG_CHECK_EXISTS], ohair@425: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl ohair@425: if test -n "$PKG_CONFIG" && \ ohair@425: AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then ohair@425: m4_ifval([$2], [$2], [:]) ohair@425: m4_ifvaln([$3], [else ohair@425: $3])dnl ohair@425: fi]) ohair@425: ohair@425: ohair@425: # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) ohair@425: # --------------------------------------------- ohair@425: m4_define([_PKG_CONFIG], ohair@425: [if test -n "$$1"; then ohair@425: pkg_cv_[]$1="$$1" ohair@425: elif test -n "$PKG_CONFIG"; then ohair@425: PKG_CHECK_EXISTS([$3], ohair@425: [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], ohair@425: [pkg_failed=yes]) ohair@425: else ohair@425: pkg_failed=untried ohair@425: fi[]dnl ohair@425: ])# _PKG_CONFIG ohair@425: ohair@425: # _PKG_SHORT_ERRORS_SUPPORTED ohair@425: # ----------------------------- ohair@425: AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], ohair@425: [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) ohair@425: if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then ohair@425: _pkg_short_errors_supported=yes ohair@425: else ohair@425: _pkg_short_errors_supported=no ohair@425: fi[]dnl ohair@425: ])# _PKG_SHORT_ERRORS_SUPPORTED ohair@425: ohair@425: ohair@425: # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], ohair@425: # [ACTION-IF-NOT-FOUND]) ohair@425: # ohair@425: # ohair@425: # Note that if there is a possibility the first call to ohair@425: # PKG_CHECK_MODULES might not happen, you should be sure to include an ohair@425: # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac ohair@425: # ohair@425: # ohair@425: # -------------------------------------------------------------- ohair@425: AC_DEFUN([PKG_CHECK_MODULES], ohair@425: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl ohair@425: AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl ohair@425: AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl ohair@425: ohair@425: pkg_failed=no ohair@425: AC_MSG_CHECKING([for $1]) ohair@425: ohair@425: _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) ohair@425: _PKG_CONFIG([$1][_LIBS], [libs], [$2]) ohair@425: ohair@425: m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS ohair@425: and $1[]_LIBS to avoid the need to call pkg-config. ohair@425: See the pkg-config man page for more details.]) ohair@425: ohair@425: if test $pkg_failed = yes; then ohair@425: _PKG_SHORT_ERRORS_SUPPORTED ohair@425: if test $_pkg_short_errors_supported = yes; then ohair@425: $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` ohair@425: else ohair@425: $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` ohair@425: fi ohair@425: # Put the nasty error message in config.log where it belongs ohair@425: echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD ohair@425: ohair@425: ifelse([$4], , [AC_MSG_ERROR(dnl ohair@425: [Package requirements ($2) were not met: ohair@425: ohair@425: $$1_PKG_ERRORS ohair@425: ohair@425: Consider adjusting the PKG_CONFIG_PATH environment variable if you ohair@425: installed software in a non-standard prefix. ohair@425: ohair@425: _PKG_TEXT ohair@425: ])], ohair@425: [AC_MSG_RESULT([no]) ohair@425: $4]) ohair@425: elif test $pkg_failed = untried; then ohair@425: ifelse([$4], , [AC_MSG_FAILURE(dnl ohair@425: [The pkg-config script could not be found or is too old. Make sure it ohair@425: is in your PATH or set the PKG_CONFIG environment variable to the full ohair@425: path to pkg-config. ohair@425: ohair@425: _PKG_TEXT ohair@425: ohair@425: To get pkg-config, see .])], ohair@425: [$4]) ohair@425: else ohair@425: $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS ohair@425: $1[]_LIBS=$pkg_cv_[]$1[]_LIBS ohair@425: AC_MSG_RESULT([yes]) ohair@425: ifelse([$3], , :, [$3]) ohair@425: fi[]dnl ohair@425: ])# PKG_CHECK_MODULES