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-#!/bin/sh
-
-# This file is part of TALER
-# (C) 2019 GNUnet e.V.
-#
-# This is very simple POSIX sh script which
-# identifies the first matching
-# python3 identifier in $PATH and produces
-# configure.py from configure.py.in, and then
-# calls the new executable configure.py.
-#
-# It should be portable on Unices. Report bugs on
-# the bugtracker if you discover that it isn't
-# working as intended.
-#
-# Authors:
-# Author: ng0 <ng0@taler.net>
-#
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
-# LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
-# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
-# THIS SOFTWARE.
-#
-# SPDX-License-Identifier: 0BSD
-
-existence_python()
-{
- # We have to check every possible variant of the
- # executable name because there is a PEP which
- # defines the executable to be like this.
- if existence python3; then
- if test ! -z "`python3 --version | awk '$2 ~ /^3\./ { print }'`"; then
- python="python3"
- else
- echo "*** At least python 3.7 is required for the buildsystem"
- exit 1
- fi
- # elif existence python3.1; then
- # python="python3.1"
- # elif existence python3.2; then
- # python="python3.2"
- # elif existence python3.3; then
- # python="python3.3"
- # elif existence python3.4; then
- # python="python3.4"
- # elif existence python3.5; then
- # python="python3.5"
- # elif existence python3.6; then
- # python="python3.6"
- elif existence python3.7; then
- python="python3.7"
- elif existence python3.8; then
- python="python3.8"
- else
- echo "*** No known python3 executable found in path ***"
- echo "*** falling back to env(1) python ***"
- # Unreliable, but if env finds no python, we still can
- # not assume python in a fixed location.
- # TODO: Check this in a clean chroot!
- python="env python"
- fi
-
- # we could check the return value here via || echo "blafoo"
- # or fail anyway once configure.py is invoked because we
- # don't have python if we reach the point to fail.
- PYTHON=$($python -c 'import sys; print(sys.executable)')
-}
-
-existence_python