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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_missing_prog.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_MISSING_PROG(VARIABLE,PROGRAM,[MESSAGE])
#
# DESCRIPTION
#
# Simple wrapper for the AM_MISSING_PROG which displays a warning MESSAGE
# if provided. A typical use is the following:
#
# AC_PROG_AWK
# AS_IF([test -z "$AWK"],[
# AX_MISSING_PROG(AWK,[awk],[awk seems missing ...])
# ])
#
# Programs wrapped with AX_MISSING_PROG should be used only in the package
# building phase (because they will be wrapped with the automake 'missing'
# script, which will not be installed).
#
# LICENSE
#
# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# 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, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 8
AC_DEFUN([AX_MISSING_PROG],[dnl
AS_IF([ test ! -z "$3" ],[
AC_MSG_WARN([$3])
])
AM_MISSING_PROG([$1],[$2])
])
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