diff options
Diffstat (limited to 'm4/pkg.m4')
| -rw-r--r-- | m4/pkg.m4 | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/m4/pkg.m4 b/m4/pkg.m4 new file mode 100644 index 0000000..5122636 --- /dev/null +++ b/m4/pkg.m4 @@ -0,0 +1,114 @@ +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# +# 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_]+$]) +m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl +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_ifval([$1], [$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi + +fi[]dnl +])# PKG_PROG_PKG_CONFIG + +# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +# --------------------------------------------- +m4_define([_PKG_CONFIG], +[if test "x$ac_cv_env_[]$1[]_set" = "xset"; then + pkg_cv_[]$1=$ac_cv_env_[]$1[]_value +elif test -n "$PKG_CONFIG"; then + if AC_RUN_LOG([$PKG_CONFIG --exists "$3" >/dev/null 2>&1]); then + pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` + else + pkg_failed=yes + fi +else + pkg_failed=untried +fi[]dnl +])# _PKG_CONFIG + +# 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.in +# +# +# -------------------------------------------------------------- +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_CACHE_CHECK([for $1][_CFLAGS], [pkg_cv_][$1][_CFLAGS], + [_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])]) +AC_CACHE_CHECK([for $1][_LIBS], [pkg_cv_][$1][_LIBS], + [_PKG_CONFIG([$1][_LIBS], [libs], [$2])]) + +if test $pkg_failed = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"` + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" 1>&AS_MESSAGE_LOG_FD + + ifelse([$4], , [AC_MSG_ERROR(dnl +[Package requirements ($2) were not met. +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables +to avoid the need to call pkg-config. See the pkg-config man page for +more details.])], + [$4]) +elif test $pkg_failed = untried; then + ifelse([$4], , [AC_MSG_FAILURE(dnl +[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. + +Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables +to avoid the need to call pkg-config. See the pkg-config man page for +more details. + +To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.])], + [$4]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + ifelse([$3], , :, [$3]) +fi[]dnl +])# PKG_CHECK_MODULES |