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Viewing changes to config/python.m4

  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2009-03-20 12:00:13 UTC
  • Revision ID: james.westby@ubuntu.com-20090320120013-hogj7egc5mjncc5g
Tags: upstream-8.4~0cvs20090328
Import upstream version 8.4~0cvs20090328

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config/python.m4
 
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#
 
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# Autoconf macros for configuring the build of Python extension modules
 
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#
 
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# $PostgreSQL$
 
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#
 
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# PGAC_PATH_PYTHON
 
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# ----------------
 
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# Look for Python and set the output variable 'PYTHON'
 
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# to 'python' if found, empty otherwise.
 
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AC_DEFUN([PGAC_PATH_PYTHON],
 
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[AC_PATH_PROG(PYTHON, python)
 
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if test x"$PYTHON" = x""; then
 
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  AC_MSG_ERROR([Python not found])
 
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fi
 
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])
 
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# _PGAC_CHECK_PYTHON_DIRS
 
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# -----------------------
 
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# Determine the name of various directories of a given Python installation.
 
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AC_DEFUN([_PGAC_CHECK_PYTHON_DIRS],
 
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[AC_REQUIRE([PGAC_PATH_PYTHON])
 
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AC_MSG_CHECKING([for Python distutils module])
 
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if "${PYTHON}" 2>&- -c 'import distutils'
 
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then
 
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    AC_MSG_RESULT(yes)
 
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else
 
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    AC_MSG_RESULT(no)
 
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    AC_MSG_ERROR([distutils module not found])
 
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fi
 
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AC_MSG_CHECKING([Python configuration directory])
 
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python_version=`${PYTHON} -c "import sys; print(sys.version[[:3]])"`
 
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python_configdir=`${PYTHON} -c "from distutils.sysconfig import get_python_lib as f; import os; print(os.path.join(f(plat_specific=1,standard_lib=1),'config'))"`
 
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python_includespec=`${PYTHON} -c "import distutils.sysconfig; print('-I'+distutils.sysconfig.get_python_inc())"`
 
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AC_SUBST(python_version)[]dnl
 
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AC_SUBST(python_configdir)[]dnl
 
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AC_SUBST(python_includespec)[]dnl
 
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# This should be enough of a message.
 
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AC_MSG_RESULT([$python_configdir])
 
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])# _PGAC_CHECK_PYTHON_DIRS
 
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# PGAC_CHECK_PYTHON_EMBED_SETUP
 
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# -----------------------------
 
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#
 
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# Note: selecting libpython from python_configdir works in all Python
 
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# releases, but it generally finds a non-shared library, which means
 
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# that we are binding the python interpreter right into libplpython.so.
 
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# In Python 2.3 and up there should be a shared library available in
 
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# the main library location.
 
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AC_DEFUN([PGAC_CHECK_PYTHON_EMBED_SETUP],
 
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[AC_REQUIRE([_PGAC_CHECK_PYTHON_DIRS])
 
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AC_MSG_CHECKING([how to link an embedded Python application])
 
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python_libdir=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBDIR'))))"`
 
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python_ldlibrary=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDLIBRARY'))))"`
 
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python_so=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('SO'))))"`
 
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ldlibrary=`echo "${python_ldlibrary}" | sed "s/${python_so}$//"`
 
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if test x"${python_libdir}" != x"" -a x"${python_ldlibrary}" != x"" -a x"${python_ldlibrary}" != x"${ldlibrary}"
 
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then
 
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        # New way: use the official shared library
 
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        ldlibrary=`echo "${ldlibrary}" | sed "s/^lib//"`
 
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        python_libspec="-L${python_libdir} -l${ldlibrary}"
 
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else
 
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        # Old way: use libpython from python_configdir
 
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        python_libdir="${python_configdir}"
 
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        python_libspec="-L${python_libdir} -lpython${python_version}"
 
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fi
 
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python_additional_libs=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','LOCALMODLIBS','BASEMODLIBS'))))"`
 
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AC_MSG_RESULT([${python_libspec} ${python_additional_libs}])
 
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AC_SUBST(python_libdir)[]dnl
 
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AC_SUBST(python_libspec)[]dnl
 
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AC_SUBST(python_additional_libs)[]dnl
 
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# threaded python is not supported on bsd's
 
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AC_MSG_CHECKING(whether Python is compiled with thread support)
 
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pythreads=`${PYTHON} -c "import sys; print(int('thread' in sys.builtin_module_names))"`
 
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if test "$pythreads" = "1"; then
 
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  AC_MSG_RESULT(yes)
 
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  case $host_os in
 
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  openbsd*|freebsd*)
 
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    AC_MSG_ERROR([threaded Python not supported on this platform])
 
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    ;;
 
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  esac
 
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else
 
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  AC_MSG_RESULT(no)
 
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fi
 
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])# PGAC_CHECK_PYTHON_EMBED_SETUP