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11c0e743b6
Per discussion with Andrew Dunstan, it seems there are three peculiarities
of the Python installation on MinGW (or at least, of the instance on
buildfarm member frogmouth). First, the library name doesn't contain
"2.7" but just "27". It looks like we can deal with that by consulting
get_config_vars('VERSION') to see whether a dot should be used or not.
Second, the library might be in c:/Windows/System32, analogously to it
possibly being in /usr/lib on Unix-oid platforms. Third, it's apparently
not standard to use the prefix "lib" on the file name. This patch will
accept files with or without "lib", but the first part of that may well
be dead code.
166 lines
6.1 KiB
Plaintext
166 lines
6.1 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=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBPL'))))"`
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AC_MSG_RESULT([$python_configdir])
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AC_MSG_CHECKING([Python include directories])
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python_includespec=`${PYTHON} -c "
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import distutils.sysconfig
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a = '-I' + distutils.sysconfig.get_python_inc(False)
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b = '-I' + distutils.sysconfig.get_python_inc(True)
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if a == b:
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print(a)
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else:
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print(a + ' ' + b)"`
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if test "$PORTNAME" = win32 ; then
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python_includespec=`echo $python_includespec | sed 's,[[\]],/,g'`
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fi
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AC_MSG_RESULT([$python_includespec])
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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_includespec)[]dnl
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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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# Set python_libdir to the path of the directory containing the Python shared
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# library. Set python_libspec to the -L/-l linker switches needed to link it.
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# Set python_additional_libs to contain any additional linker switches needed
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# for subsidiary libraries.
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#
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# In modern, well-configured Python installations, LIBDIR gives the correct
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# directory name and LDLIBRARY is the file name of the shlib. But in older
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# installations LDLIBRARY is frequently a useless path fragment, and it's also
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# possible that the shlib is in a standard library directory such as /usr/lib
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# so that LIBDIR is irrelevant. Also, some packagers put the .so symlink for
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# the shlib in ${python_configdir} even though Python itself never does.
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# We must also check that what we found is a shared library not a plain
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# library, which we do by checking its extension. (We used to rely on
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# Py_ENABLE_SHARED, but that only tells us that a shlib exists, not that
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# we found it.)
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AC_DEFUN([PGAC_CHECK_PYTHON_EMBED_SETUP],
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[AC_REQUIRE([_PGAC_CHECK_PYTHON_DIRS])
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AC_MSG_CHECKING([how to link an embedded Python application])
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python_libdir=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBDIR'))))"`
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python_ldlibrary=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDLIBRARY'))))"`
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# If LDLIBRARY exists and has a shlib extension, use it verbatim.
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ldlibrary=`echo "${python_ldlibrary}" | sed -e 's/\.so$//' -e 's/\.dll$//' -e 's/\.dylib$//' -e 's/\.sl$//'`
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if test -e "${python_libdir}/${python_ldlibrary}" -a x"${python_ldlibrary}" != x"${ldlibrary}"
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then
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ldlibrary=`echo "${ldlibrary}" | sed "s/^lib//"`
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found_shlib=1
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else
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# Otherwise, guess the base name of the shlib.
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# LDVERSION was added in Python 3.2, before that use VERSION,
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# or failing that, $python_version from _PGAC_CHECK_PYTHON_DIRS.
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python_ldversion=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
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if test x"${python_ldversion}" != x""; then
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ldlibrary="python${python_ldversion}"
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else
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python_version_var=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('VERSION'))))"`
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if test x"${python_version_var}" != x""; then
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ldlibrary="python${python_version_var}"
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else
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ldlibrary="python${python_version}"
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fi
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fi
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# Search for a likely-looking file.
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found_shlib=0
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for d in "${python_libdir}" "${python_configdir}" /usr/lib64 /usr/lib
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do
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# We don't know the platform DLSUFFIX here, so check 'em all.
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for e in .so .dll .dylib .sl; do
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if test -e "$d/lib${ldlibrary}$e"; then
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python_libdir="$d"
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found_shlib=1
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break 2
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fi
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done
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done
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# Some platforms (OpenBSD) require us to accept a bare versioned shlib
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# (".so.n.n") as well. However, check this only after failing to find
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# ".so" anywhere, because yet other platforms (Debian) put the .so
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# symlink in a different directory from the underlying versioned shlib.
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if test "$found_shlib" != 1; then
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for d in "${python_libdir}" "${python_configdir}" /usr/lib64 /usr/lib
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do
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for f in "$d/lib${ldlibrary}.so."* ; do
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if test -e "$f"; then
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python_libdir="$d"
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found_shlib=1
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break 2
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fi
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done
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done
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fi
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# As usual, Windows has its own ideas. c:/Windows/System32 takes the
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# place of /usr/lib as a possible default library location, and the
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# "lib" prefix might not be there.
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if test "$found_shlib" != 1 -a "$PORTNAME" = win32 ; then
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for d in "${python_libdir}" "${python_configdir}" c:/Windows/System32
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do
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for f in "$d/lib${ldlibrary}.dll" "$d/${ldlibrary}.dll" ; do
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if test -e "$f"; then
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python_libdir="$d"
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found_shlib=1
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break 2
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fi
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done
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done
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fi
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fi
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if test "$found_shlib" != 1; then
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AC_MSG_ERROR([could not find shared library for Python
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You might have to rebuild your Python installation. Refer to the
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documentation for details. Use --without-python to disable building
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PL/Python.])
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fi
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python_libspec="-L${python_libdir} -l${ldlibrary}"
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python_additional_libs=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
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AC_MSG_RESULT([${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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])# PGAC_CHECK_PYTHON_EMBED_SETUP
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