1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gst-gmyth/m4/pkg.m4 Fri Mar 14 12:45:05 2008 +0000
1.3 @@ -0,0 +1,114 @@
1.4 +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
1.5 +#
1.6 +# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
1.7 +#
1.8 +# This program is free software; you can redistribute it and/or modify
1.9 +# it under the terms of the GNU General Public License as published by
1.10 +# the Free Software Foundation; either version 2 of the License, or
1.11 +# (at your option) any later version.
1.12 +#
1.13 +# This program is distributed in the hope that it will be useful, but
1.14 +# WITHOUT ANY WARRANTY; without even the implied warranty of
1.15 +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1.16 +# General Public License for more details.
1.17 +#
1.18 +# You should have received a copy of the GNU General Public License
1.19 +# along with this program; if not, write to the Free Software
1.20 +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
1.21 +#
1.22 +# As a special exception to the GNU General Public License, if you
1.23 +# distribute this file as part of a program that contains a
1.24 +# configuration script generated by Autoconf, you may include it under
1.25 +# the same distribution terms that you use for the rest of that program.
1.26 +
1.27 +# PKG_PROG_PKG_CONFIG([MIN-VERSION])
1.28 +# ----------------------------------
1.29 +AC_DEFUN([PKG_PROG_PKG_CONFIG],
1.30 +[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
1.31 +m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
1.32 +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
1.33 +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
1.34 + AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
1.35 +fi
1.36 +if test -n "$PKG_CONFIG"; then
1.37 + _pkg_min_version=m4_ifval([$1], [$1], [0.9.0])
1.38 + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
1.39 + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
1.40 + AC_MSG_RESULT([yes])
1.41 + else
1.42 + AC_MSG_RESULT([no])
1.43 + PKG_CONFIG=""
1.44 + fi
1.45 +
1.46 +fi[]dnl
1.47 +])# PKG_PROG_PKG_CONFIG
1.48 +
1.49 +# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
1.50 +# ---------------------------------------------
1.51 +m4_define([_PKG_CONFIG],
1.52 +[if test "x$ac_cv_env_[]$1[]_set" = "xset"; then
1.53 + pkg_cv_[]$1=$ac_cv_env_[]$1[]_value
1.54 +elif test -n "$PKG_CONFIG"; then
1.55 + if AC_RUN_LOG([$PKG_CONFIG --exists "$3" >/dev/null 2>&1]); then
1.56 + pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
1.57 + else
1.58 + pkg_failed=yes
1.59 + fi
1.60 +else
1.61 + pkg_failed=untried
1.62 +fi[]dnl
1.63 +])# _PKG_CONFIG
1.64 +
1.65 +# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
1.66 +# [ACTION-IF-NOT-FOUND])
1.67 +#
1.68 +#
1.69 +# Note that if there is a possibility the first call to
1.70 +# PKG_CHECK_MODULES might not happen, you should be sure to include an
1.71 +# explicit call to PKG_PROG_PKG_CONFIG in your configure.in
1.72 +#
1.73 +#
1.74 +# --------------------------------------------------------------
1.75 +AC_DEFUN([PKG_CHECK_MODULES],
1.76 +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
1.77 +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
1.78 +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
1.79 +
1.80 +pkg_failed=no
1.81 +AC_CACHE_CHECK([for $1][_CFLAGS], [pkg_cv_][$1][_CFLAGS],
1.82 + [_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])])
1.83 +AC_CACHE_CHECK([for $1][_LIBS], [pkg_cv_][$1][_LIBS],
1.84 + [_PKG_CONFIG([$1][_LIBS], [libs], [$2])])
1.85 +
1.86 +if test $pkg_failed = yes; then
1.87 + $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1.88 + # Put the nasty error message in config.log where it belongs
1.89 + echo "$$1[]_PKG_ERRORS" 1>&AS_MESSAGE_LOG_FD
1.90 +
1.91 + ifelse([$4], , [AC_MSG_ERROR(dnl
1.92 +[Package requirements ($2) were not met.
1.93 +Consider adjusting the PKG_CONFIG_PATH environment variable if you
1.94 +installed software in a non-standard prefix.
1.95 +
1.96 +Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables
1.97 +to avoid the need to call pkg-config. See the pkg-config man page for
1.98 +more details.])],
1.99 + [$4])
1.100 +elif test $pkg_failed = untried; then
1.101 + ifelse([$4], , [AC_MSG_FAILURE(dnl
1.102 +[The pkg-config script could not be found or is too old. Make sure it
1.103 +is in your PATH or set the PKG_CONFIG environment variable to the full
1.104 +path to pkg-config.
1.105 +
1.106 +Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables
1.107 +to avoid the need to call pkg-config. See the pkg-config man page for
1.108 +more details.
1.109 +
1.110 +To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.])],
1.111 + [$4])
1.112 +else
1.113 + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
1.114 + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
1.115 + ifelse([$3], , :, [$3])
1.116 +fi[]dnl
1.117 +])# PKG_CHECK_MODULES