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samba-mirror/m4/check_python.m4
Volker Lendecke 1c6d89660e m4: Don't AC_MSG_ERROR when too old python is found
This broke the pure S3 build with an old python

Matthias Dieter Wallnöfer, please check!

Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Mon Jan 10 11:26:18 CET 2011 on sn-devel-104
2011-01-10 11:26:18 +01:00

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dnl Autoconf macros for finding a Python development environment
dnl
dnl Copyright (C) 2007-2008 Jelmer Vernooij <jelmer@samba.org>
dnl Published under the GNU GPL, v3 or later
dnl
AC_ARG_VAR([PYTHON_VER],[The installed Python
version to use, for example '2.3'. This string
will be appended to the Python interpreter
canonical name.])
AC_DEFUN([TRY_LINK_PYTHON],
[
if test $working_python = no; then
ac_save_LIBS="$LIBS"
ac_save_CFLAGS="$CFLAGS"
LIBS="$LIBS $1"
CFLAGS="$CFLAGS $2"
AC_TRY_LINK([
#undef HAVE_UINTPTR_T
/* we have our own configure tests */
#include <Python.h>
],[
Py_InitModule(NULL, NULL);
],[
PYTHON_LDFLAGS="$1"
PYTHON_CFLAGS="$2"
working_python=yes
])
LIBS="$ac_save_LIBS"
CFLAGS="$ac_save_CFLAGS"
fi
])
dnl Try to find a Python implementation including header files
dnl AC_SAMBA_PYTHON_DEVEL(RUN-IF-FOUND, RUN-IF-NOT-FOUND)
dnl
dnl Will set the following variables:
dnl $PYTHON
dnl $PYTHON_CONFIG (if found)
dnl $PYTHON_CFLAGS
dnl $PYTHON_LDFLAGS
AC_DEFUN([AC_SAMBA_PYTHON_DEVEL],
[
if test -z "$PYTHON_VER"; then
AC_PATH_PROGS([PYTHON], [python2.6 python2.5 python2.4 python])
else
AC_PATH_PROG([PYTHON],[python[$PYTHON_VER]])
fi
if test -z "$PYTHON"; then
working_python=no
AC_MSG_WARN([No python found])
fi
dnl assume no working python
working_python=no
if test -z "$PYTHON_VER"; then
AC_PATH_PROGS([PYTHON_CONFIG], [python2.6-config python2.5-config python2.4-config python-config])
else
AC_PATH_PROG([PYTHON_CONFIG], [python[$PYTHON_VER]-config])
fi
if test -z "$PYTHON_CONFIG"; then
AC_MSG_WARN([No python-config found])
else
TRY_LINK_PYTHON([`$PYTHON_CONFIG --ldflags`], [`$PYTHON_CONFIG --includes`])
TRY_LINK_PYTHON([`$PYTHON_CONFIG --ldflags`], [`$PYTHON_CONFIG --cflags`])
if test x$working_python = xno; then
# It seems the library path isn't included on some systems
base=`$PYTHON_CONFIG --prefix`
TRY_LINK_PYTHON([`echo -n -L${base}/lib " "; $PYTHON_CONFIG --ldflags`], [`$PYTHON_CONFIG --includes`])
TRY_LINK_PYTHON([`echo -n -L${base}/lib " "; $PYTHON_CONFIG --ldflags`], [`$PYTHON_CONFIG --cflags`])
fi
fi
if test x$PYTHON != x
then
DISTUTILS_CFLAGS=`$PYTHON -c "from distutils import sysconfig; \
print '-I%s -I%s %s' % ( \
sysconfig.get_python_inc(), \
sysconfig.get_python_inc(plat_specific=1), \
sysconfig.get_config_var('CFLAGS'))"`
DISTUTILS_LDFLAGS=`$PYTHON -c "from distutils import sysconfig; \
print '%s %s -lpython%s -L%s %s -L%s' % ( \
sysconfig.get_config_var('LIBS'), \
sysconfig.get_config_var('SYSLIBS'), \
sysconfig.get_config_var('VERSION'), \
sysconfig.get_config_var('LIBDIR'), \
sysconfig.get_config_var('LDFLAGS'), \
sysconfig.get_config_var('LIBPL'))"`
TRY_LINK_PYTHON($DISTUTILS_LDFLAGS, $DISTUTILS_CFLAGS)
if `$PYTHON -c "import sys; sys.exit(sys.version_info.__getslice__(0, 2) >= (2, 4))"`
then
AC_MSG_WARN([Python ($PYTHON) is too old. At least version 2.4 is required])
working_python=no
fi
fi
AC_MSG_CHECKING(working python module support)
if test $working_python = yes; then
AC_MSG_RESULT([yes])
$1
else
AC_MSG_RESULT([no])
$2
fi
])