DPF-Plugins/plugins/ProM/projectM/m4/autoconf-archive/ax_check_awk_exit.m4

# ===========================================================================
#    https://www.gnu.org/software/autoconf-archive/ax_check_awk_exit.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_CHECK_AWK_EXIT([ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
#
# DESCRIPTION
#
#   Check if AWK supports exit(). 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 9

AC_DEFUN([AX_CHECK_AWK_EXIT],[
  AC_REQUIRE([AX_NEED_AWK])

  AC_MSG_CHECKING([if $AWK supports exit()])
  echo "" | $AWK '{ exit(99); }' 2>/dev/null
  AS_IF([test $? -eq 99],[
    AC_MSG_RESULT([yes])
    $1
  ],[
    AC_MSG_RESULT([no])
    $2
  ])
])