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dd4cd55c15
Behaves more or less unchanged compared to Python 2, but the new language variant is called plpython3u. Documentation describing the naming scheme is included.
98 lines
3.7 KiB
Plaintext
98 lines
3.7 KiB
Plaintext
#
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# Autoconf macros for configuring the build of Python extension modules
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#
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# $PostgreSQL: pgsql/config/python.m4,v 1.17 2009/12/15 22:59:53 petere Exp $
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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}" -c 'import distutils' 2>&AS_MESSAGE_LOG_FD
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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_majorversion=`${PYTHON} -c "import sys; print(sys.version[[0]])"`
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python_version=`${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_majorversion)[]dnl
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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
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