--- /dev/null
+--- /dev/null
++++ b/m4/pkg.m4
+@@ -0,0 +1,157 @@
++# 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_default([$1], [0.9.0])
++ AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
++ if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
++ AC_MSG_RESULT([yes])
++ else
++ AC_MSG_RESULT([no])
++ PKG_CONFIG=""
++ fi
++
++fi[]dnl
++])# PKG_PROG_PKG_CONFIG
++
++# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
++#
++# Check to see whether a particular set of modules exists. Similar
++# to PKG_CHECK_MODULES(), but does not set variables or print errors.
++#
++#
++# Similar to PKG_CHECK_MODULES, make sure that the first instance of
++# this or PKG_CHECK_MODULES is called, or make sure to call
++# PKG_CHECK_EXISTS manually
++# --------------------------------------------------------------
++AC_DEFUN([PKG_CHECK_EXISTS],
++[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
++if test -n "$PKG_CONFIG" && \
++ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
++ m4_ifval([$2], [$2], [:])
++m4_ifvaln([$3], [else
++ $3])dnl
++fi])
++
++
++# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
++# ---------------------------------------------
++m4_define([_PKG_CONFIG],
++[if test -n "$PKG_CONFIG"; then
++ if test -n "$$1"; then
++ pkg_cv_[]$1="$$1"
++ else
++ PKG_CHECK_EXISTS([$3],
++ [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
++ [pkg_failed=yes])
++ fi
++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
++ _PKG_SHORT_ERRORS_SUPPORTED
++ if test $_pkg_short_errors_supported = yes; then
++ $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
++ else
++ $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
++ fi
++ # Put the nasty error message in config.log where it belongs
++ echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
++
++ ifelse([$4], , [AC_MSG_ERROR(dnl
++[Package requirements ($2) were not met:
++
++$$1_PKG_ERRORS
++
++Consider adjusting the PKG_CONFIG_PATH environment variable if you
++installed software in a non-standard prefix.
++
++_PKG_TEXT
++])],
++ [AC_MSG_RESULT([no])
++ $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.
++
++_PKG_TEXT
++
++To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
++ [$4])
++else
++ $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
++ $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
++ AC_MSG_RESULT([yes])
++ ifelse([$3], , :, [$3])
++fi[]dnl
++])# PKG_CHECK_MODULES
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -1,4 +1,4 @@
+-ACLOCAL_AMFLAGS = -I shave
++ACLOCAL_AMFLAGS = -I shave -I m4
+
+ SUBDIRS = libbb libopkg src tests utils man
+
projects / openwrt.git / blobdiff