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ax_python.m4
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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_python.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PYTHON
#
# DESCRIPTION
#
# This macro does a complete Python development environment check.
#
# It recurses through several python versions (from 2.1 to 2.6 in this
# version), looking for an executable. 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.
#
# LICENSE
#
# Copyright (c) 2008 Michael Tindal
#
# 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 <http://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 14
AC_DEFUN([AX_PYTHON],
[AC_MSG_CHECKING(for python build information)
AC_MSG_RESULT([])
for python in python3.3 python3.2 python3.1 python3.0 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python; do
AC_CHECK_PROGS(PYTHON_BIN, [$python])
ax_python_bin=$PYTHON_BIN
if test x$ax_python_bin != x; then
AC_CHECK_LIB($ax_python_bin, main, ax_python_lib=$ax_python_bin, ax_python_lib=no)
if test x$ax_python_lib == xno; then
AC_CHECK_LIB(${ax_python_bin}m, main, ax_python_lib=${ax_python_bin}m, ax_python_lib=no)
fi
if test x$ax_python_lib != xno; then
ax_python_header=`$ax_python_bin -c "from distutils.sysconfig import *; print(get_config_var('CONFINCLUDEPY'))"`
if test x$ax_python_header != x; then
break;
fi
fi
fi
done
if test x$ax_python_bin = x; then
ax_python_bin=no
else
$PYTHON_BIN --version >>conftest.log 2>&1
version_string=`$GREP -i 'Python' conftest.log | head -1`
ax_python_major_version=[`echo $version_string | $SED -n -e 's|Python .*\([0-9][0-9]*\.[0-9][0-9]*\)\.[0-9][0-9]*|\1|p'`]
rm -f conftest.log
PYTHON_MAJOR_VERSION=$ax_python_major_version
AC_SUBST([PYTHON_MAJOR_VERSION])
fi
if test x$ax_python_header = x; then
ax_python_header=no
fi
if test x$ax_python_lib = x; then
ax_python_lib=no
fi
AC_MSG_RESULT([ results of the Python check:])
AC_MSG_RESULT([ Binary: $ax_python_bin])
AC_MSG_RESULT([ Major version: $ax_python_major_version])
AC_MSG_RESULT([ Library: $ax_python_lib])
AC_MSG_RESULT([ Include Dir: $ax_python_header])
if test x$ax_python_header != xno; then
PYTHON_INCLUDE_DIR=$ax_python_header
AC_SUBST(PYTHON_INCLUDE_DIR)
fi
if test x$ax_python_lib != xno; then
PYTHON_LIB=$ax_python_lib
AC_SUBST(PYTHON_LIB)
fi
AM_CONDITIONAL([PYTHON_AVAILABLE],
[test $ax_python_bin != "no"])
])dnl

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