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dnl Copyright (C) 2008, 2010, 2013 Free Software Foundation, Inc.
dnl GNU Radius is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl GNU Radius is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
dnl AM_GNU_RADIUS(minversion, [act-if-found], [ac-if-not-found])
dnl $1 $2 $3
dnl Verify if GNU Radius is installed and if its version is `minversion'
dnl or newer. If not installed, execute `ac-if-not-found' or, if it is not
dnl given, spit out an error message.
dnl If GNU Radius is found, set:
dnl GNU_RADIUS_VERSION to the Radius version (string);
dnl GNU_RADIUS_VERSION_NUMBER to the packed numeric representation of the
dnl GNU Radius version (major * 1000 + minor * 100 + patch);
dnl GNU_RADIUS_LIBS to the list of cc(1) flags needed to link in the
dnl GNU Radius libraries
dnl
dnl Finally, if `act-if-found' is given, execute it. Otherwise, append the
dnl value of $GNU_RADIUS_LIBS to LIBS.
AC_DEFUN([_AM_GRAD_PREPROC],[
AC_REQUIRE_CPP()dnl
AC_LANG_CONFTEST([$1])
$3=`$CPP conftest.$ac_ext 2>conftest.err | sed -n 's/^$2//p'`
rm -f conftest.err conftest.$ac_ext])
m4_define([grad_version_number],[dnl
patsubst([$1],[\([0-9]+\)\.\([0-9]+\)\(\.\([0-9]+\)\)?.*],
[m4_builtin(eval, \1*1000 + \2*100 + \40 / 10)])dnl
])
AC_DEFUN([AM_GNU_RADIUS],
[AC_SUBST(GNU_RADIUS_VERSION)
AC_SUBST(GNU_RADIUS_VERSION_NUMBER)
AC_SUBST(GNU_RADIUS_LIBS)
AC_CHECK_HEADERS([radius/radius.h],
[grad_cv_radius=yes],
[grad_cv_radius=no])
if test $grad_cv_radius = yes; then
AC_CHECK_LIB(gnuradius, grad_dict_init,
:,
[grad_cv_radius=no])
fi
if test $grad_cv_radius = yes; then
_AM_GRAD_PREPROC([AC_LANG_PROGRAM([
#include <radius/types.h>
version=GRAD_VERSION_MAJOR.GRAD_VERSION_MINOR.GRAD_VERSION_PATCH
],[])],
[version=],
[grad_version_string])
GNU_RADIUS_VERSION=
for f in $grad_version_string
do
GNU_RADIUS_VERSION="${GNU_RADIUS_VERSION}$f"
done
if test -n "GNU_RADIUS_VERSION"; then
VEX=`echo $GNU_RADIUS_VERSION | sed 's/\./ \\\\* 1000 + /;s/\./ \\\\* 100 + /'`
GNU_RADIUS_VERSION_NUMBER=`eval expr "$VEX"`
ifelse($1,,,[
if test $GNU_RADIUS_VERSION_NUMBER -lt grad_version_number($1); then
ifelse($3,,
[AC_MSG_ERROR([GNU Radius version too old; required is at least ]$1)],
[$3])
fi])
GNU_RADIUS_LIBS="-lgnuradius"
ifelse($2,,[LIBS="$LIBS $GNU_RADIUS_LIBS"], [$2])
fi
fi
if test $grad_cv_radius != yes; then
ifelse($3,,[AC_MSG_ERROR(cannot find GNU Radius)], [$3])
fi])
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