diff options
Diffstat (limited to 'external/unbound/acx_python.m4')
| -rw-r--r-- | external/unbound/acx_python.m4 | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/external/unbound/acx_python.m4 b/external/unbound/acx_python.m4 new file mode 100644 index 000000000..254ff2096 --- /dev/null +++ b/external/unbound/acx_python.m4 @@ -0,0 +1,115 @@ +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$PYTHON_VERSION in your system path]) + PYTHON_VERSION="" + fi + + if test -z "$PYTHON_VERSION"; then + PYTHON_VERSION=`$PYTHON -c "import sys; \ + print(sys.version.split()[[0]])"` + fi + + # + # Check if you have distutils, else fail + # + AC_MSG_CHECKING([for the distutils Python package]) + ac_distutils_result=`$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 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 "$PYTHON_LDFLAGS"; then + PYTHON_LDFLAGS=`$PYTHON -c "from distutils.sysconfig import *; \ + print(get_config_var('BLDLIBRARY'));"` + 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=`$PYTHON -c "import distutils.sysconfig; \ + print(distutils.sysconfig.get_python_lib(1,0));"` + fi + AC_MSG_RESULT([$PYTHON_SITE_PKG]) + AC_SUBST([PYTHON_SITE_PKG]) + + # + # 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 + ac_save_LIBS="$LIBS" + ac_save_CPPFLAGS="$CPPFLAGS" + + LIBS="$LIBS $PYTHON_LDFLAGS" + CPPFLAGS="$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! + # +]) + |