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Claes Nästén
2009-04-29 09:06 9f3e1..0733f
Add PKG_CONFIG macros, OpenBSD does not include this.
    OpenBSD does not include the pkg config macros, just a perl reimplementation
    of pkg-config. Add this to make autoconf play.

acinclude.m4
 
1254 @@ -1254,3 +1254,158 @@
1254 ])# PKG_CHECK_MODULES
1255
1256
1257 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
1258 #
1259 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
1260 #
1261 # This program is free software; you can redistribute it and/or modify
1262 # it under the terms of the GNU General Public License as published by
1263 # the Free Software Foundation; either version 2 of the License, or
1264 # (at your option) any later version.
1265 #
1266 # This program is distributed in the hope that it will be useful, but
1267 # WITHOUT ANY WARRANTY; without even the implied warranty of
1268 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1269 # General Public License for more details.
1270 #
1271 # You should have received a copy of the GNU General Public License
1272 # along with this program; if not, write to the Free Software
1273 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
1274 #
1275 # As a special exception to the GNU General Public License, if you
1276 # distribute this file as part of a program that contains a
1277 # configuration script generated by Autoconf, you may include it under
1278 # the same distribution terms that you use for the rest of that program.
1279
1280 # PKG_PROG_PKG_CONFIG([MIN-VERSION])
1281 # ----------------------------------
1282 AC_DEFUN([PKG_PROG_PKG_CONFIG],
1283 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
1284 m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
1285 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
1286 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
1287 AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
1288 fi
1289 if test -n "$PKG_CONFIG"; then
1290 _pkg_min_version=m4_default([$1], [0.9.0])
1291 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
1292 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
1293 AC_MSG_RESULT([yes])
1294 else
1295 AC_MSG_RESULT([no])
1296 PKG_CONFIG=""
1297 fi
1298
1299 fi[]dnl
1300 ])# PKG_PROG_PKG_CONFIG
1301
1302 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
1303 #
1304 # Check to see whether a particular set of modules exists. Similar
1305 # to PKG_CHECK_MODULES(), but does not set variables or print errors.
1306 #
1307 #
1308 # Similar to PKG_CHECK_MODULES, make sure that the first instance of
1309 # this or PKG_CHECK_MODULES is called, or make sure to call
1310 # PKG_CHECK_EXISTS manually
1311 # --------------------------------------------------------------
1312 AC_DEFUN([PKG_CHECK_EXISTS],
1313 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1314 if test -n "$PKG_CONFIG" && \
1315 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
1316 m4_ifval([$2], [$2], [:])
1317 m4_ifvaln([$3], [else
1318 $3])dnl
1319 fi])
1320
1321
1322 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
1323 # ---------------------------------------------
1324 m4_define([_PKG_CONFIG],
1325 [if test -n "$$1"; then
1326 pkg_cv_[]$1="$$1"
1327 elif test -n "$PKG_CONFIG"; then
1328 PKG_CHECK_EXISTS([$3],
1329 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
1330 [pkg_failed=yes])
1331 else
1332 pkg_failed=untried
1333 fi[]dnl
1334 ])# _PKG_CONFIG
1335
1336 # _PKG_SHORT_ERRORS_SUPPORTED
1337 # -----------------------------
1338 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
1339 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
1340 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
1341 _pkg_short_errors_supported=yes
1342 else
1343 _pkg_short_errors_supported=no
1344 fi[]dnl
1345 ])# _PKG_SHORT_ERRORS_SUPPORTED
1346
1347
1348 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
1349 # [ACTION-IF-NOT-FOUND])
1350 #
1351 #
1352 # Note that if there is a possibility the first call to
1353 # PKG_CHECK_MODULES might not happen, you should be sure to include an
1354 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
1355 #
1356 #
1357 # --------------------------------------------------------------
1358 AC_DEFUN([PKG_CHECK_MODULES],
1359 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1360 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
1361 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
1362
1363 pkg_failed=no
1364 AC_MSG_CHECKING([for $1])
1365
1366 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
1367 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
1368
1369 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
1370 and $1[]_LIBS to avoid the need to call pkg-config.
1371 See the pkg-config man page for more details.])
1372
1373 if test $pkg_failed = yes; then
1374 _PKG_SHORT_ERRORS_SUPPORTED
1375 if test $_pkg_short_errors_supported = yes; then
1376 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
1377 else
1378 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
1379 fi
1380 # Put the nasty error message in config.log where it belongs
1381 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
1382
1383 ifelse([$4], , [AC_MSG_ERROR(dnl
1384 [Package requirements ($2) were not met:
1385
1386 $$1_PKG_ERRORS
1387
1388 Consider adjusting the PKG_CONFIG_PATH environment variable if you
1389 installed software in a non-standard prefix.
1390
1391 _PKG_TEXT
1392 ])],
1393 [AC_MSG_RESULT([no])
1394 $4])
1395 elif test $pkg_failed = untried; then
1396 ifelse([$4], , [AC_MSG_FAILURE(dnl
1397 [The pkg-config script could not be found or is too old. Make sure it
1398 is in your PATH or set the PKG_CONFIG environment variable to the full
1399 path to pkg-config.
1400
1401 _PKG_TEXT
1402
1403 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
1404 [$4])
1405 else
1406 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
1407 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
1408 AC_MSG_RESULT([yes])
1409 ifelse([$3], , :, [$3])
1410 fi[]dnl
1411 ])# PKG_CHECK_MODULES
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