mirror of https://github.com/postgres/postgres
96 lines
3.5 KiB
Plaintext
96 lines
3.5 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 1.14 2006/10/16 17:24:54 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}" 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=`${PYTHON} -c "import distutils.sysconfig,string; print string.join(filter(None,distutils.sysconfig.get_config_vars('LIBDIR')))"`
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python_ldlibrary=`${PYTHON} -c "import distutils.sysconfig,string; print string.join(filter(None,distutils.sysconfig.get_config_vars('LDLIBRARY')))"`
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python_so=`${PYTHON} -c "import distutils.sysconfig,string; print string.join(filter(None,distutils.sysconfig.get_config_vars('SO')))"`
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ldlibrary=`echo "${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=`${PYTHON} -c "import distutils.sysconfig,string; print string.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','LOCALMODLIBS','BASEMODLIBS')))"`
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AC_MSG_RESULT([${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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