dnl $Id: ac_python_devel.m4 729 2007-01-14 13:44:38Z michael $ dnl $URL: https://ssl.bulix.org/svn/lcd4linux/branches/0.10.1/ac_python_devel.m4 $ dnl @synopsis AC_PYTHON_DEVEL([version]) dnl dnl Checks for Python and tries to get the include path to 'Python.h'. dnl It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) output dnl variables. Also exports $(PYTHON_EXTRA_LIBS) and dnl $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code. dnl dnl You can search for some particular version of Python by passing a dnl parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". dnl Please note that you *have* to pass also an operator along with the dnl version to match, and pay special attention to the single quotes dnl surrounding the version number. dnl dnl If the user wants to employ a particular version of Python, she can dnl now pass to configure the PYTHON_VERSION environment variable. This dnl is only limited by the macro parameter set by the packager. dnl dnl This macro should work for all versions of Python >= 2.1.0. You can dnl disable the check for the python version by setting the dnl PYTHON_NOVERSIONCHECK environment variable to something else than dnl the empty string. dnl dnl If you need to use this macro for an older Python version, please dnl contact the authors. We're always open for feedback. dnl dnl @category InstalledPackages dnl @author Sebastian Huber dnl @author Alan W. Irwin dnl @author Rafael Laboissiere dnl @author Andrew Collier dnl @author Matteo Settenvini dnl @version 2006-02-05 dnl @license GPLWithACException AC_DEFUN([AC_PYTHON_DEVEL],[ # # Allow the use of a (user set) custom python version # AC_ARG_VAR([PYTHON_VERSION],[The installed Python version to use, for example '2.3'. This string will be appended to the Python interpreter canonical name.]) AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]]) if test -z "$PYTHON"; then AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path]) fi # # Check for a version of Python >= 2.1.0 # AC_MSG_CHECKING([for a version of Python >= '2.1.0']) ac_supports_python_ver=`$PYTHON -c "import sys, string; \ ver = string.split(sys.version)[[0]]; \ print ver >= '2.1.0'"` if test "$ac_supports_python_ver" != "True"; then if test -z "$PYTHON_NOVERSIONCHECK"; then AC_MSG_RESULT([no]) AC_MSG_FAILURE([ This version of the AC@&t@_PYTHON_DEVEL macro doesn't work properly with versions of Python before 2.1.0. You may need to re-run configure, setting the variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG, PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand. Moreover, to disable this check, set PYTHON_NOVERSIONCHECK to something else than an empty string. ])dnl else AC_MSG_RESULT([skip at user request]) fi else AC_MSG_RESULT([yes]) fi # # if the macro parameter ``version'' is set, honour it # if test -n "$1"; then AC_MSG_CHECKING([for a version of Python $1]) ac_supports_python_ver=`$PYTHON -c "import sys, string; \ ver = string.split(sys.version)[[0]]; \ print ver $1"` if test "$ac_supports_python_ver" = "True"; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) AC_MSG_ERROR([this package requires Python $1. If you have it installed, but it isn't the default Python interpreter in your system path, please pass the PYTHON_VERSION variable to configure. See ``configure --help'' for reference. ])dnl fi fi # # Check if you have distutils, else fail # AC_MSG_CHECKING([for the distutils Python package]) ac_distutils_result=`$PYTHON -c "import distutils" 2>&1` if test -z "$ac_distutils_result"; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) AC_MSG_ERROR([cannot import Python module "distutils". Please check your Python installation. The error was: $ac_distutils_result]) fi # # Check for Python include path # AC_MSG_CHECKING([for Python include path]) if test -z "$PYTHON_CPPFLAGS"; then python_path=`$PYTHON -c "import distutils.sysconfig; \ print distutils.sysconfig.get_python_inc();"` if test -n "${python_path}"; then python_path="-I$python_path" fi PYTHON_CPPFLAGS=$python_path fi AC_MSG_RESULT([$PYTHON_CPPFLAGS]) AC_SUBST([PYTHON_CPPFLAGS]) # # Check for Python library path # AC_MSG_CHECKING([for Python library path]) if test -z "$PYTHON_LDFLAGS"; then # (makes two attempts to ensure we've got a version number # from the interpreter) py_version=`$PYTHON -c "from distutils.sysconfig import *; \ from string import join; \ print join(get_config_vars('VERSION'))"` if test "$py_version" == "[None]"; then if test -n "$PYTHON_VERSION"; then py_version=$PYTHON_VERSION else py_version=`$PYTHON -c "import sys; \ print sys.version[[:3]]"` fi fi PYTHON_LDFLAGS=`$PYTHON -c "from distutils.sysconfig import *; \ from string import join; \ print '-L' + get_python_lib(0,1), \ '-lpython';"`$py_version fi AC_MSG_RESULT([$PYTHON_LDFLAGS]) AC_SUBST([PYTHON_LDFLAGS]) # # Check for site packages # AC_MSG_CHECKING([for Python site-packages path]) if test -z "$PYTHON_SITE_PKG"; then PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \ print distutils.sysconfig.get_python_lib(0,0);"` fi AC_MSG_RESULT([$PYTHON_SITE_PKG]) AC_SUBST([PYTHON_SITE_PKG]) # # libraries which must be linked in when embedding # AC_MSG_CHECKING(python extra libraries) if test -z "$PYTHON_EXTRA_LIBS"; then PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \ conf = distutils.sysconfig.get_config_var; \ print conf('LOCALMODLIBS'), conf('LIBS')"` fi AC_MSG_RESULT([$PYTHON_EXTRA_LIBS]) AC_SUBST(PYTHON_EXTRA_LIBS) # # linking flags needed when embedding # AC_MSG_CHECKING(python extra linking flags) if test -z "$PYTHON_EXTRA_LDFLAGS"; then PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \ conf = distutils.sysconfig.get_config_var; \ print conf('LINKFORSHARED')"` fi AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS]) AC_SUBST(PYTHON_EXTRA_LDFLAGS) ])