| # =========================================================================== |
| # http://autoconf-archive.cryp.to/ac_python_devel.html |
| # =========================================================================== |
| # |
| # SYNOPSIS |
| # |
| # AC_PYTHON_DEVEL([version]) |
| # |
| # DESCRIPTION |
| # |
| # Note: Defines as a precious variable "PYTHON_VERSION". Don't override it |
| # in your configure.ac. |
| # |
| # This macro checks for Python and tries to get the include path to |
| # 'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) |
| # output variables. It also exports $(PYTHON_EXTRA_LIBS) and |
| # $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code. |
| # |
| # You can search for some particular version of Python by passing a |
| # parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please |
| # note that you *have* to pass also an operator along with the version to |
| # match, and pay special attention to the single quotes surrounding the |
| # version number. Don't use "PYTHON_VERSION" for this: that environment |
| # variable is declared as precious and thus reserved for the end-user. |
| # |
| # This macro should work for all versions of Python >= 2.1.0. As an end |
| # user, you can disable the check for the python version by setting the |
| # PYTHON_NOVERSIONCHECK environment variable to something else than the |
| # empty string. |
| # |
| # If you need to use this macro for an older Python version, please |
| # contact the authors. We're always open for feedback. |
| # |
| # LAST MODIFICATION |
| # |
| # 2008-04-12 |
| # |
| # COPYLEFT |
| # |
| # Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de> |
| # Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca> |
| # Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net> |
| # Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za> |
| # Copyright (c) 2008 Matteo Settenvini <matteo@member.fsf.org> |
| # Copyright (c) 2008 Horst Knorr <hk_classes@knoda.org> |
| # |
| # 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 3 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 Macro 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. |
| |
| 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]) |
| PYTHON_VERSION="" |
| 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=`$PYTHON -c "import sys; \ |
| ver = sys.version.split()[[0]]; \ |
| print(ver >= '2.1.0')"` |
| if test "$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. |
| ]) |
| 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; \ |
| ver = sys.version.split()[[0]]; \ |
| print(ver >= '2.1.0')"` |
| if test "$ac_supports_python_ver" = "True"; then |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| AC_MSG_ERROR([this package requires Python $1. |
| If you have it installed, but it isn't the default Python |
| interpreter in your system path, please pass the PYTHON_VERSION |
| variable to configure. See ``configure --help'' for reference. |
| ]) |
| PYTHON_VERSION="" |
| fi |
| fi |
| |
| # |
| # Check if you have distutils, else fail |
| # |
| AC_MSG_CHECKING([for the distutils Python package]) |
| ac_distutils_result=`$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]) |
| PYTHON_VERSION="" |
| fi |
| |
| # |
| # Check for Python include path |
| # |
| AC_MSG_CHECKING([for Python include path]) |
| if type $PYTHON-config; then |
| PYTHON_CPPFLAGS=`$PYTHON-config --includes` |
| fi |
| 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 type $PYTHON-config; then |
| PYTHON_LDFLAGS=`$PYTHON-config --ldflags` |
| fi |
| 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 *; \ |
| 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=`$PYTHON -c "from distutils.sysconfig import *; \ |
| print('-L' + get_python_lib(0,1) + \ |
| ' -lpython');"`$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) |
| |
| # |
| # final check to see if everything compiles alright |
| # |
| AC_MSG_CHECKING([consistency of all components of python development environment]) |
| AC_LANG_PUSH([C]) |
| # save current global flags |
| LIBS="$ac_save_LIBS $PYTHON_LDFLAGS" |
| CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS" |
| AC_TRY_LINK([ |
| #include <Python.h> |
| ],[ |
| Py_Initialize(); |
| ],[pythonexists=yes],[pythonexists=no]) |
| |
| AC_MSG_RESULT([$pythonexists]) |
| |
| if test ! "$pythonexists" = "yes"; then |
| AC_MSG_ERROR([ |
| Could not link test program to Python. Maybe the main Python library has been |
| installed in some non-standard library path. If so, pass it to configure, |
| via the LDFLAGS environment variable. |
| Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" |
| ============================================================================ |
| ERROR! |
| You probably have to install the development version of the Python package |
| for your distribution. The exact name of this package varies among them. |
| ============================================================================ |
| ]) |
| PYTHON_VERSION="" |
| fi |
| AC_LANG_POP |
| # turn back to default flags |
| CPPFLAGS="$ac_save_CPPFLAGS" |
| LIBS="$ac_save_LIBS" |
| |
| # |
| # all done! |
| # |
| ]) |