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# SPDX-License-Identifier: FSFAP
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_prog_python_version.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_PYTHON_VERSION([VERSION],[ACTION-IF-TRUE],[ACTION-IF-FALSE])
#
# DESCRIPTION
#
# Makes sure that python supports the version indicated. If true the shell
# commands in ACTION-IF-TRUE are executed. If not the shell commands in
# ACTION-IF-FALSE are run. Note if $PYTHON is not set (for example by
# running AC_CHECK_PROG or AC_PATH_PROG) the macro will fail.
#
# Example:
#
# AC_PATH_PROG([PYTHON],[python])
# AX_PROG_PYTHON_VERSION([2.4.4],[ ... ],[ ... ])
#
# This will check to make sure that the python you have supports at least
# version 2.4.4.
#
# NOTE: This macro uses the $PYTHON variable to perform the check.
# AX_WITH_PYTHON can be used to set that variable prior to running this
# macro. The $PYTHON_VERSION variable will be valorized with the detected
# version.
#
# LICENSE
#
# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 11
AC_DEFUN([AX_PROG_PYTHON_VERSION],[
AC_REQUIRE([AC_PROG_SED])
AC_REQUIRE([AC_PROG_GREP])
AS_IF([test -n "$PYTHON"],[
ax_python_version="$1"
AC_MSG_CHECKING([for python version])
changequote(<<,>>)
python_version=`$PYTHON -V 2>&1 | $GREP "^Python " | $SED -e 's/^.* \([0-9]*\.[0-9]*\.[0-9]*\)/\1/'`
changequote([,])
AC_MSG_RESULT($python_version)
AC_SUBST([PYTHON_VERSION],[$python_version])
AX_COMPARE_VERSION([$ax_python_version],[le],[$python_version],[
:
$2
],[
:
$3
])
],[
AC_MSG_WARN([could not find the python interpreter])
$3
])
])