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qmcchem/m4/ax_irpf90.m4

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_irpf90.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_IRPF90
#
# DESCRIPTION
#
# Check for the program 'irpf90', let script continue if exists, pops up
# error message if not.
#
# Besides checking existence, this macro also set these environment
# variables upon completion:
#
# IRPF90 = which irpf90
#
# DEPENDENCIES
#
# AX_CHECK_GNU_MAKE
#
# LICENSE
#
# Copyright (c) 2021 Anthony Scemama
#
# 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.
AU_ALIAS([AC_PROG_IRPF90], [AX_PROG_IRPF90])
AC_DEFUN([AX_PROG_IRPF90], [
# Requirements
AC_REQUIRE([AX_CHECK_GNU_MAKE])
AS_IF([test "x$ifGNUmake" = "x#"], [ AC_MSG_ERROR([GNU Make (gmake) is required with IRPF90]) ])
# IRPF90
AC_PATH_PROG([IRPF90], [irpf90], [nocommand])
AS_IF([test "x$IRPF90" = xnocommand], [
AC_MSG_ERROR([irpf90 not found in $PATH]) ])
AC_FC_FREEFORM
AC_FC_LINE_LENGTH
AC_FC_MODULE_EXTENSION
])