Make checking for python more predictable.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
This commit is contained in:
Bryan Hundven 2023-03-08 17:15:22 -08:00 committed by Chris Packham
parent 1b0c227c05
commit fa05153eba
4 changed files with 133 additions and 13 deletions

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@ -253,19 +253,11 @@ CTNG_PROG_VERSION([M4],
[\(GNU M4\) ([2-9]\.|1\.[5-9]|1\.[1-4][0-9]|1\.4\.[2-9][0-9]|1\.4\.1[2-9])],
[gnu_m4_1_4_12_or_newer])
CTNG_PROG_VERSION([PYTHON],
[Python],
[python],
[python37 python3.7 python36 python3.6 python35 python3.5 python34 python3.4 python33 python3.3 python32 python3.2 python31 python3.1 python3 python27 python2.7 python26 python2.6 python2 python],
[^Python [23]\.],
[python])
# Check for Python
CTNG_PYTHON
CTNG_PROG_VERSION([PYTHON],
[Python >= 3.4],
[python],
[python37 python3.7 python36 python3.6 python35 python3.5 python34 python3.4 python3 python],
[^Python 3\.([4-9]|[1-9][0-9]+)\.],
[python_3_4_or_newer])
# Check for Python 3.4 or newer
CTNG_PYTHON_VERSION([3],[4])
CTNG_PROG_VERSION_REQ_ANY([BISON],
[bison >= 2.7],

111
m4/ctng_python.m4 Normal file
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@ -0,0 +1,111 @@
# ===========================================================================
# Based on: https://www.gnu.org/software/autoconf-archive/ctng_python.html
# ===========================================================================
#
# SYNOPSIS
#
# CTNG_PYTHON
#
# DESCRIPTION
#
# This macro does a complete Python development environment check.
#
# It checks for all known versions. When it finds an executable, it looks
# to find the header files and library.
#
# It sets PYTHON_BIN to the name of the python executable,
# PYTHON_INCLUDE_DIR to the directory holding the header files, and
# PYTHON_LIB to the name of the Python library.
#
# This macro calls AC_SUBST on PYTHON_BIN (via AC_CHECK_PROG),
# PYTHON_INCLUDE_DIR and PYTHON_LIB.
#
# Also calls CTNG_SET_KCONFIG_OPTION to set KCONFIG_python for
# crosstool-ng.
#
# LICENSE
#
# Copyright (c) 2008 Michael Tindal
# Copyright (c) 2023 Bryan Hundven
#
# 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 21
AC_DEFUN([CTNG_PYTHON],
[
AC_MSG_CHECKING(for python build information)
AC_MSG_RESULT([])
for python in python3.12 python3.11 python3.10 python3.9 python3.8 python3.7 dnl
python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2.7 dnl
python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python; do
AC_CHECK_PROGS(PYTHON_BIN, [$python])
ctng_python_bin=$PYTHON_BIN
if test "$ctng_python_bin" != ""; then
AC_CHECK_LIB($ctng_python_bin, main, ctng_python_lib=$ctng_python_bin, ctng_python_lib=no)
if test "$ctng_python_lib" = "no"; then
AC_CHECK_LIB(${ctng_python_bin}m, main, ctng_python_lib=${ctng_python_bin}m, ctng_python_lib=no)
fi
if test "$ctng_python_lib" != "no"; then
$ctng_python_bin -c 'import sysconfig' 2>&1
if test $? -eq 0; then
ctng_python_header=$($ctng_python_bin -c "from sysconfig import get_config_var; print(get_config_var('CONFINCLUDEPY'))")
else
ctng_python_header=$($ctng_python_bin -c "from distutils.sysconfig import *; print(get_config_var('CONFINCLUDEPY'))")
fi
if test "$ctng_python_header" != ""; then
break;
fi
fi
fi
done
python=n
AS_IF([test "$ctng_python_bin" = ""],
ctng_python_bin=no,
python=y)
CTNG_SET_KCONFIG_OPTION([python])
AS_IF([test "$ctng_python_header" = ""],
ctng_python_header=no)
AS_IF([test "$ctng_python_lib" = ""],
ctng_python_lib=no)
AC_MSG_RESULT([ results of the Python check:])
AC_MSG_RESULT([ Binary: $ctng_python_bin])
AC_MSG_RESULT([ Library: $ctng_python_lib])
AC_MSG_RESULT([ Include Dir: $ctng_python_header])
AS_IF([test "$ctng_python_header" != "no"],
[PYTHON_INCLUDE_DIR=$ctng_python_header
AC_SUBST(PYTHON_INCLUDE_DIR)])
AS_IF([test "$ctng_python_lib" != "no"],
[PYTHON_LIB=$ctng_python_lib
AC_SUBST(PYTHON_LIB)])
])dnl

17
m4/ctng_python_version.m4 Normal file
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@ -0,0 +1,17 @@
# CTNG_PYTHON_VERSION([major],[minor])
#
# Check for at least a specific Major.Minor of python.
# Don't error out if it isn't matched... Might go back on that.
AC_DEFUN([CTNG_PYTHON_VERSION],
[
AC_MSG_CHECKING(for python version greater than $1.$2)
pyvermajor=$($PYTHON_BIN -c "import sys; print(sys.version_info.major)")
pyverminor=$($PYTHON_BIN -c "import sys; print(sys.version_info.minor)")
AS_IF([test $pyvermajor -ge $1 -a $pyverminor -ge $2],
eval "python_$1_$2_or_newer=y"
[CTNG_SET_KCONFIG_OPTION([python_$1_$2_or_newer])
AC_MSG_RESULT([yes: ${pyvermajor}.${pyverminor}])],
AC_MSG_RESULT([no: ${pyvermajor}.${pyverminor}]))
])dnl

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@ -6,7 +6,7 @@ export grep="@GREP@"
export gmake="@MAKE@"
export gnumake="@MAKE@"
export make="@MAKE@"
export python="@PYTHON@"
export python="@PYTHON_BIN@"
export sed="@SED@"
export libtool="@LIBTOOL@"
export libtoolize="@LIBTOOLIZE@"