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Because of ABI tagging, the library version number might no longer be exactly the Python version number, so do extra lookups. This affects installations without a shared library, such as ActiveState's installer. Also update the way to detect the location of the 'config' directory, which can also be versioned. Ashesh Vashi
103 lines
3.8 KiB
Plaintext
103 lines
3.8 KiB
Plaintext
#
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# Autoconf macros for configuring the build of Python extension modules
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#
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# config/python.m4
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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=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBPL'))))"`
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python_includespec=`${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="${python_configdir}"
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# LDVERSION was introduced in Python 3.2.
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python_ldversion=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
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if test x"${python_ldversion}" = x""; then
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python_ldversion=$python_version
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fi
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python_libspec="-L${python_libdir} -lpython${python_ldversion}"
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fi
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python_additional_libs=`${PYTHON} -c "import distutils.sysconfig,string; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
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AC_MSG_RESULT([${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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