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# ===========================================================================
# http://www.nongnu.org/autoconf-archive/ax_perl_module_version.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PERL_MODULE_VERSION([MODULE VERSION], [ACTION-IF-TRUE], [ACTION-IF-FALSE])
#
# DESCRIPTION
#
# Checks to see if the list of 'Module Version' are avaiable in the
# system. If all the modules in the list are avaiable ACTION-IF-TRUE is
# executed. Case one module is not avaiable ACTION-IF-FALSE is executed
# and the macro execution is aborted. NOTE: Perl is needed.
#
# Example:
#
# AX_PERL_MODULE_VERSION(CGI::Test 0.104 CGI::Ajax 0.694, ,
# AC_MSG_ERROR(Need some Perl modules))
#
# LICENSE
#
# Copyright (c) 2009 Marco Gomes <mpglesi@gmail.com>
# Copyright (c) 2009 Ruben Fonseca <fonseka@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved.
AC_DEFUN([AX_PERL_MODULE_VERSION],[dnl
ac_perl_list_modules="$1"
# Make sure we have perl
if test -z "$PERL"; then
AC_CHECK_PROG(PERL,perl,perl)
fi
# Check the number of arguments
args_num=`echo $ac_perl_list_modules | wc -w`
let "ckeck_args = $args_num % 2"
if test "$check_args" = "1" ; then
AC_MSG_ERROR(syntax error)
else
eval
fi
if test "x$PERL" != x; then
ac_failed=0
while test ${#ac_perl_list_modules} -gt 2 ; do
module_name=`echo $ac_perl_list_modules | cut -d " " -f 1`
module_version=`echo $ac_perl_list_modules | cut -d " " -f 2`
ac_perl_list_modules=`echo $ac_perl_list_modules | cut -d " " -f 3-`
AC_MSG_CHECKING(for perl module $module_name version $module_version)
$PERL "-M$module_name" -e exit > /dev/null 2>&1
if test $? -ne 0; then
AC_MSG_RESULT(no);
ac_failed=1
ac_perl_list_modules=""
else
version=`$PERL "-M$module_name" -e 'print $'"$module_name::VERSION" 2>&1`
$PERL -e 'exit(shift cmp shift)' "$version" "$module_version"
if test $? -eq 0 -o $? -eq 1 ; then
AC_MSG_RESULT(ok);
else
AC_MSG_RESULT(no)
ac_failed=1
ac_perl_list_modules=""
fi
fi;
done
if test "$ac_failed" = 0; then
:
$2
else
:
$3
fi
else
AC_MSG_ERROR(could not find perl)
fi])dnl
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