| # generated automatically by aclocal 1.14.1 -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 1996-2013 Free Software Foundation, Inc. | 
 |  | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # This program is distributed in the hope that it will be useful, | 
 | # but WITHOUT ANY WARRANTY, to the extent permitted by law; without | 
 | # even the implied warranty of MERCHANTABILITY or FITNESS FOR A | 
 | # PARTICULAR PURPOSE. | 
 |  | 
 | m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) | 
 | # pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*- | 
 | # serial 1 (pkg-config-0.24) | 
 | #  | 
 | # Copyright © 2004 Scott James Remnant <scott@netsplit.com>. | 
 | # | 
 | # This program is free software; you can redistribute it and/or modify | 
 | # it under the terms of the GNU General Public License as published by | 
 | # the Free Software Foundation; either version 2 of the License, or | 
 | # (at your option) any later version. | 
 | # | 
 | # This program is distributed in the hope that it will be useful, but | 
 | # WITHOUT ANY WARRANTY; without even the implied warranty of | 
 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
 | # General Public License for more details. | 
 | # | 
 | # You should have received a copy of the GNU General Public License | 
 | # along with this program; if not, write to the Free Software | 
 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | 
 | # | 
 | # As a special exception to the GNU General Public License, if you | 
 | # distribute this file as part of a program that contains a | 
 | # configuration script generated by Autoconf, you may include it under | 
 | # the same distribution terms that you use for the rest of that program. | 
 |  | 
 | # PKG_PROG_PKG_CONFIG([MIN-VERSION]) | 
 | # ---------------------------------- | 
 | AC_DEFUN([PKG_PROG_PKG_CONFIG], | 
 | [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) | 
 | m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) | 
 | m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) | 
 | AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) | 
 | AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) | 
 | AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) | 
 |  | 
 | if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then | 
 | 	AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) | 
 | fi | 
 | if test -n "$PKG_CONFIG"; then | 
 | 	_pkg_min_version=m4_default([$1], [0.9.0]) | 
 | 	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) | 
 | 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then | 
 | 		AC_MSG_RESULT([yes]) | 
 | 	else | 
 | 		AC_MSG_RESULT([no]) | 
 | 		PKG_CONFIG="" | 
 | 	fi | 
 | fi[]dnl | 
 | ])# PKG_PROG_PKG_CONFIG | 
 |  | 
 | # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) | 
 | # | 
 | # Check to see whether a particular set of modules exists.  Similar | 
 | # to PKG_CHECK_MODULES(), but does not set variables or print errors. | 
 | # | 
 | # Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) | 
 | # only at the first occurence in configure.ac, so if the first place | 
 | # it's called might be skipped (such as if it is within an "if", you | 
 | # have to call PKG_CHECK_EXISTS manually | 
 | # -------------------------------------------------------------- | 
 | AC_DEFUN([PKG_CHECK_EXISTS], | 
 | [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl | 
 | if test -n "$PKG_CONFIG" && \ | 
 |     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then | 
 |   m4_default([$2], [:]) | 
 | m4_ifvaln([$3], [else | 
 |   $3])dnl | 
 | fi]) | 
 |  | 
 | # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) | 
 | # --------------------------------------------- | 
 | m4_define([_PKG_CONFIG], | 
 | [if test -n "$$1"; then | 
 |     pkg_cv_[]$1="$$1" | 
 |  elif test -n "$PKG_CONFIG"; then | 
 |     PKG_CHECK_EXISTS([$3], | 
 |                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` | 
 | 		      test "x$?" != "x0" && pkg_failed=yes ], | 
 | 		     [pkg_failed=yes]) | 
 |  else | 
 |     pkg_failed=untried | 
 | fi[]dnl | 
 | ])# _PKG_CONFIG | 
 |  | 
 | # _PKG_SHORT_ERRORS_SUPPORTED | 
 | # ----------------------------- | 
 | AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], | 
 | [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) | 
 | if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then | 
 |         _pkg_short_errors_supported=yes | 
 | else | 
 |         _pkg_short_errors_supported=no | 
 | fi[]dnl | 
 | ])# _PKG_SHORT_ERRORS_SUPPORTED | 
 |  | 
 |  | 
 | # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], | 
 | # [ACTION-IF-NOT-FOUND]) | 
 | # | 
 | # | 
 | # Note that if there is a possibility the first call to | 
 | # PKG_CHECK_MODULES might not happen, you should be sure to include an | 
 | # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac | 
 | # | 
 | # | 
 | # -------------------------------------------------------------- | 
 | AC_DEFUN([PKG_CHECK_MODULES], | 
 | [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl | 
 | AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl | 
 | AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl | 
 |  | 
 | pkg_failed=no | 
 | AC_MSG_CHECKING([for $1]) | 
 |  | 
 | _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) | 
 | _PKG_CONFIG([$1][_LIBS], [libs], [$2]) | 
 |  | 
 | m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS | 
 | and $1[]_LIBS to avoid the need to call pkg-config. | 
 | See the pkg-config man page for more details.]) | 
 |  | 
 | if test $pkg_failed = yes; then | 
 |    	AC_MSG_RESULT([no]) | 
 |         _PKG_SHORT_ERRORS_SUPPORTED | 
 |         if test $_pkg_short_errors_supported = yes; then | 
 | 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` | 
 |         else  | 
 | 	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` | 
 |         fi | 
 | 	# Put the nasty error message in config.log where it belongs | 
 | 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD | 
 |  | 
 | 	m4_default([$4], [AC_MSG_ERROR( | 
 | [Package requirements ($2) were not met: | 
 |  | 
 | $$1_PKG_ERRORS | 
 |  | 
 | Consider adjusting the PKG_CONFIG_PATH environment variable if you | 
 | installed software in a non-standard prefix. | 
 |  | 
 | _PKG_TEXT])[]dnl | 
 |         ]) | 
 | elif test $pkg_failed = untried; then | 
 |      	AC_MSG_RESULT([no]) | 
 | 	m4_default([$4], [AC_MSG_FAILURE( | 
 | [The pkg-config script could not be found or is too old.  Make sure it | 
 | is in your PATH or set the PKG_CONFIG environment variable to the full | 
 | path to pkg-config. | 
 |  | 
 | _PKG_TEXT | 
 |  | 
 | To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl | 
 |         ]) | 
 | else | 
 | 	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS | 
 | 	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS | 
 |         AC_MSG_RESULT([yes]) | 
 | 	$3 | 
 | fi[]dnl | 
 | ])# PKG_CHECK_MODULES | 
 |  | 
 |  | 
 | # PKG_INSTALLDIR(DIRECTORY) | 
 | # ------------------------- | 
 | # Substitutes the variable pkgconfigdir as the location where a module | 
 | # should install pkg-config .pc files. By default the directory is | 
 | # $libdir/pkgconfig, but the default can be changed by passing | 
 | # DIRECTORY. The user can override through the --with-pkgconfigdir | 
 | # parameter. | 
 | AC_DEFUN([PKG_INSTALLDIR], | 
 | [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) | 
 | m4_pushdef([pkg_description], | 
 |     [pkg-config installation directory @<:@]pkg_default[@:>@]) | 
 | AC_ARG_WITH([pkgconfigdir], | 
 |     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, | 
 |     [with_pkgconfigdir=]pkg_default) | 
 | AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) | 
 | m4_popdef([pkg_default]) | 
 | m4_popdef([pkg_description]) | 
 | ]) dnl PKG_INSTALLDIR | 
 |  | 
 |  | 
 | # PKG_NOARCH_INSTALLDIR(DIRECTORY) | 
 | # ------------------------- | 
 | # Substitutes the variable noarch_pkgconfigdir as the location where a | 
 | # module should install arch-independent pkg-config .pc files. By | 
 | # default the directory is $datadir/pkgconfig, but the default can be | 
 | # changed by passing DIRECTORY. The user can override through the | 
 | # --with-noarch-pkgconfigdir parameter. | 
 | AC_DEFUN([PKG_NOARCH_INSTALLDIR], | 
 | [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) | 
 | m4_pushdef([pkg_description], | 
 |     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) | 
 | AC_ARG_WITH([noarch-pkgconfigdir], | 
 |     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, | 
 |     [with_noarch_pkgconfigdir=]pkg_default) | 
 | AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) | 
 | m4_popdef([pkg_default]) | 
 | m4_popdef([pkg_description]) | 
 | ]) dnl PKG_NOARCH_INSTALLDIR | 
 |  | 
 |  | 
 | # PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, | 
 | # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) | 
 | # ------------------------------------------- | 
 | # Retrieves the value of the pkg-config variable for the given module. | 
 | AC_DEFUN([PKG_CHECK_VAR], | 
 | [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl | 
 | AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl | 
 |  | 
 | _PKG_CONFIG([$1], [variable="][$3]["], [$2]) | 
 | AS_VAR_COPY([$1], [pkg_cv_][$1]) | 
 |  | 
 | AS_VAR_IF([$1], [""], [$5], [$4])dnl | 
 | ])# PKG_CHECK_VAR | 
 |  |