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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_check_awk__v.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_AWK__V([ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
#
# DESCRIPTION
#
# Check if AWK supports -v option ($AWK -v var=val '<PROGRAM>'). If
# successful execute ACTION-IF-SUCCESS otherwise ACTION-IF-FAILURE.
#
# This work is heavily based upon testawk.sh script by Heiner Steven. You
# should find his script (and related works) at
# <http://www.shelldorado.com/articles/awkcompat.html>. Thanks to
# Alessandro Massignan for his suggestions and extensive nawk tests on
# FreeBSD.
#
# LICENSE
#
# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# 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. This file is offered as-is, without any
# warranty.
#serial 8
AC_DEFUN([AX_CHECK_AWK__V],[
AC_REQUIRE([AX_NEED_AWK])
AC_MSG_CHECKING([if $AWK supports -v option])
ax_try_awk_output=`echo "" | $AWK -v variable=A '{ print variable; }' 2> /dev/null`
AS_IF([test $? -eq 0],[
AS_IF([test "X$ax_try_awk_output" = "XA"],[
AC_MSG_RESULT([yes])
$1
],[
AC_MSG_RESULT([no])
$2
])
],[
AC_MSG_RESULT([no])
$2
])
])
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