Bring through upstream version tagged PKGCONF_0_20.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40646 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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Michael Wetherell
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# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
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#
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# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# As a special exception to the GNU General Public License, if you
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# distribute this file as part of a program that contains a
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# configuration script generated by Autoconf, you may include it under
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# the same distribution terms that you use for the rest of that program.
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dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
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dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
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dnl also defines GSTUFF_PKG_ERRORS on error
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AC_DEFUN([PKG_CHECK_MODULES], [
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succeeded=no
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# PKG_PROG_PKG_CONFIG([MIN-VERSION])
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# ----------------------------------
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AC_DEFUN([PKG_PROG_PKG_CONFIG],
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[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
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m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
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AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
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if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
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AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
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fi
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if test -n "$PKG_CONFIG"; then
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_pkg_min_version=m4_default([$1], [0.9.0])
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AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
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if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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PKG_CONFIG=""
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fi
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fi[]dnl
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])# PKG_PROG_PKG_CONFIG
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if test -z "$PKG_CONFIG"; then
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AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
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fi
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# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
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#
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# Check to see whether a particular set of modules exists. Similar
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# to PKG_CHECK_MODULES(), but does not set variables or print errors.
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#
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#
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# Similar to PKG_CHECK_MODULES, make sure that the first instance of
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# this or PKG_CHECK_MODULES is called, or make sure to call
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# PKG_CHECK_EXISTS manually
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# --------------------------------------------------------------
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AC_DEFUN([PKG_CHECK_EXISTS],
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
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if test -n "$PKG_CONFIG" && \
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AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
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m4_ifval([$2], [$2], [:])
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m4_ifvaln([$3], [else
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$3])dnl
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fi])
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if test "$PKG_CONFIG" = "no" ; then
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echo "*** The pkg-config script could not be found. Make sure it is"
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echo "*** in your path, or set the PKG_CONFIG environment variable"
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echo "*** to the full path to pkg-config."
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echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
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else
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PKG_CONFIG_MIN_VERSION=0.9.0
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if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
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AC_MSG_CHECKING(for $2)
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if $PKG_CONFIG --exists "$2" ; then
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AC_MSG_RESULT(yes)
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succeeded=yes
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# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
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# ---------------------------------------------
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m4_define([_PKG_CONFIG],
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[if test -n "$PKG_CONFIG"; then
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if test -n "$$1"; then
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pkg_cv_[]$1="$$1"
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else
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PKG_CHECK_EXISTS([$3],
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[pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
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[pkg_failed=yes])
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fi
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else
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pkg_failed=untried
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fi[]dnl
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])# _PKG_CONFIG
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AC_MSG_CHECKING($1_CFLAGS)
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$1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
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AC_MSG_RESULT($$1_CFLAGS)
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# _PKG_SHORT_ERRORS_SUPPORTED
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# -----------------------------
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AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
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if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
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_pkg_short_errors_supported=yes
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else
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_pkg_short_errors_supported=no
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fi[]dnl
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])# _PKG_SHORT_ERRORS_SUPPORTED
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AC_MSG_CHECKING($1_LIBS)
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$1_LIBS=`$PKG_CONFIG --libs "$2"`
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AC_MSG_RESULT($$1_LIBS)
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else
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$1_CFLAGS=""
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$1_LIBS=""
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## If we have a custom action on failure, don't print errors, but
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## do set a variable so people can do so.
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$1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
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ifelse([$4], ,echo $$1_PKG_ERRORS,)
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# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
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# [ACTION-IF-NOT-FOUND])
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#
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#
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# Note that if there is a possibility the first call to
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# PKG_CHECK_MODULES might not happen, you should be sure to include an
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# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
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#
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#
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# --------------------------------------------------------------
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AC_DEFUN([PKG_CHECK_MODULES],
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
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AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
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AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
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pkg_failed=no
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AC_MSG_CHECKING([for $1])
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_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
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_PKG_CONFIG([$1][_LIBS], [libs], [$2])
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m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
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and $1[]_LIBS to avoid the need to call pkg-config.
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See the pkg-config man page for more details.])
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if test $pkg_failed = yes; then
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_PKG_SHORT_ERRORS_SUPPORTED
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if test $_pkg_short_errors_supported = yes; then
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$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
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else
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$1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
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fi
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# Put the nasty error message in config.log where it belongs
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echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
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AC_SUBST($1_CFLAGS)
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AC_SUBST($1_LIBS)
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else
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echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
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echo "*** See http://www.freedesktop.org/software/pkgconfig"
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fi
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fi
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ifelse([$4], , [AC_MSG_ERROR(dnl
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[Package requirements ($2) were not met:
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if test $succeeded = yes; then
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ifelse([$3], , :, [$3])
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else
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ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
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fi
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])
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$$1_PKG_ERRORS
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Consider adjusting the PKG_CONFIG_PATH environment variable if you
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installed software in a non-standard prefix.
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_PKG_TEXT
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])],
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[$4])
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elif test $pkg_failed = untried; then
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ifelse([$4], , [AC_MSG_FAILURE(dnl
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[The pkg-config script could not be found or is too old. Make sure it
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is in your PATH or set the PKG_CONFIG environment variable to the full
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path to pkg-config.
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_PKG_TEXT
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To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.])],
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[$4])
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else
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$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
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$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
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AC_MSG_RESULT([yes])
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ifelse([$3], , :, [$3])
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fi[]dnl
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])# PKG_CHECK_MODULES
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