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Replace use of deprecated Python module distutils.sysconfig, take 2.

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With Python 3.10, configure spits out warnings about the module
distutils.sysconfig being deprecated and scheduled for removal in
Python 3.12.  Change the uses in configure to use the module sysconfig
instead.  The logic stays largely the same, although we have to
rely on INCLUDEPY instead of the deprecated get_python_inc function.

Note that sysconfig exists since Python 2.7, so this moves the minimum
required version up from Python 2.6.  Also, sysconfig didn't exist in
Python 3.1, so the minimum 3.x version is now 3.2.

We should consider back-patching this if it gives no further trouble,
as the no-longer-supported versions are old enough to probably not
be interesting to anyone.

Peter Eisentraut, Tom Lane, Andres Freund

Discussion: https://postgr.es/m/c74add3c-09c4-a9dd-1a03-a846e5b2fc52@enterprisedb.com
pull/75/head
Tom Lane 3 years ago
parent e221770661
commit bd233bdd8d
3 changed files with 31 additions and 45 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 33
      config/python.m4
  2. 37
      configure
  3. 6
      doc/src/sgml/installation.sgml

33
config/python.m4
Unescape View File

@ -37,32 +37,25 @@ python_majorversion=`echo "$python_fullversion" | sed '[s/^\([0-9]*\).*/\1/]'`
python_minorversion=`echo "$python_fullversion" | sed '[s/^[0-9]*\.\([0-9]*\).*/\1/]'`
python_version=`echo "$python_fullversion" | sed '[s/^\([0-9]*\.[0-9]*\).*/\1/]'`
# Reject unsupported Python versions as soon as practical.
if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 6; then
AC_MSG_ERROR([Python version $python_version is too old (version 2.6 or later is required)])
if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 7; then
AC_MSG_ERROR([Python version $python_version is too old (version 2.7 or later is required)])
fi
AC_MSG_CHECKING([for Python distutils module])
if "${PYTHON}" -c 'import distutils' 2>&AS_MESSAGE_LOG_FD
AC_MSG_CHECKING([for Python sysconfig module])
if "${PYTHON}" -c 'import sysconfig' 2>&AS_MESSAGE_LOG_FD
then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
AC_MSG_ERROR([distutils module not found])
AC_MSG_ERROR([sysconfig module not found])
fi
AC_MSG_CHECKING([Python configuration directory])
python_configdir=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBPL'))))"`
python_configdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBPL'))))"`
AC_MSG_RESULT([$python_configdir])
AC_MSG_CHECKING([Python include directories])
python_includespec=`${PYTHON} -c "
import distutils.sysconfig
a = '-I' + distutils.sysconfig.get_python_inc(False)
b = '-I' + distutils.sysconfig.get_python_inc(True)
if a == b:
print(a)
else:
print(a + ' ' + b)"`
AC_MSG_CHECKING([Python include directory])
python_includespec=`${PYTHON} -c "import sysconfig; print('-I' + sysconfig.get_config_var('INCLUDEPY'))"`
if test "$PORTNAME" = win32 ; then
python_includespec=`echo $python_includespec | sed 's,[[\]],/,g'`
fi
@ -96,8 +89,8 @@ AC_DEFUN([PGAC_CHECK_PYTHON_EMBED_SETUP],
[AC_REQUIRE([_PGAC_CHECK_PYTHON_DIRS])
AC_MSG_CHECKING([how to link an embedded Python application])
python_libdir=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBDIR'))))"`
python_ldlibrary=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDLIBRARY'))))"`
python_libdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBDIR'))))"`
python_ldlibrary=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LDLIBRARY'))))"`
# If LDLIBRARY exists and has a shlib extension, use it verbatim.
ldlibrary=`echo "${python_ldlibrary}" | sed -e 's/\.so$//' -e 's/\.dll$//' -e 's/\.dylib$//' -e 's/\.sl$//'`
@ -109,11 +102,11 @@ else
# Otherwise, guess the base name of the shlib.
# LDVERSION was added in Python 3.2, before that use VERSION,
# or failing that, $python_version from _PGAC_CHECK_PYTHON_DIRS.
python_ldversion=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
python_ldversion=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LDVERSION'))))"`
if test x"${python_ldversion}" != x""; then
ldlibrary="python${python_ldversion}"
else
python_version_var=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('VERSION'))))"`
python_version_var=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('VERSION'))))"`
if test x"${python_version_var}" != x""; then
ldlibrary="python${python_version_var}"
else
@ -173,7 +166,7 @@ PL/Python.])
fi
python_libspec="-L${python_libdir} -l${ldlibrary}"
python_additional_libs=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
python_additional_libs=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
AC_MSG_RESULT([${python_libspec} ${python_additional_libs}])

37
configure vendored
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@ -10345,38 +10345,31 @@ python_majorversion=`echo "$python_fullversion" | sed 's/^\([0-9]*\).*/\1/'`
python_minorversion=`echo "$python_fullversion" | sed 's/^[0-9]*\.\([0-9]*\).*/\1/'`
python_version=`echo "$python_fullversion" | sed 's/^\([0-9]*\.[0-9]*\).*/\1/'`
# Reject unsupported Python versions as soon as practical.
if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 6; then
as_fn_error $? "Python version $python_version is too old (version 2.6 or later is required)" "$LINENO" 5
if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 7; then
as_fn_error $? "Python version $python_version is too old (version 2.7 or later is required)" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Python distutils module" >&5
$as_echo_n "checking for Python distutils module... " >&6; }
if "${PYTHON}" -c 'import distutils' 2>&5
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Python sysconfig module" >&5
$as_echo_n "checking for Python sysconfig module... " >&6; }
if "${PYTHON}" -c 'import sysconfig' 2>&5
then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
as_fn_error $? "distutils module not found" "$LINENO" 5
as_fn_error $? "sysconfig module not found" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Python configuration directory" >&5
$as_echo_n "checking Python configuration directory... " >&6; }
python_configdir=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBPL'))))"`
python_configdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBPL'))))"`
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $python_configdir" >&5
$as_echo "$python_configdir" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Python include directories" >&5
$as_echo_n "checking Python include directories... " >&6; }
python_includespec=`${PYTHON} -c "
import distutils.sysconfig
a = '-I' + distutils.sysconfig.get_python_inc(False)
b = '-I' + distutils.sysconfig.get_python_inc(True)
if a == b:
print(a)
else:
print(a + ' ' + b)"`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Python include directory" >&5
$as_echo_n "checking Python include directory... " >&6; }
python_includespec=`${PYTHON} -c "import sysconfig; print('-I' + sysconfig.get_config_var('INCLUDEPY'))"`
if test "$PORTNAME" = win32 ; then
python_includespec=`echo $python_includespec | sed 's,[\],/,g'`
fi
@ -10388,8 +10381,8 @@ $as_echo "$python_includespec" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link an embedded Python application" >&5
$as_echo_n "checking how to link an embedded Python application... " >&6; }
python_libdir=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBDIR'))))"`
python_ldlibrary=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDLIBRARY'))))"`
python_libdir=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBDIR'))))"`
python_ldlibrary=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LDLIBRARY'))))"`
# If LDLIBRARY exists and has a shlib extension, use it verbatim.
ldlibrary=`echo "${python_ldlibrary}" | sed -e 's/\.so$//' -e 's/\.dll$//' -e 's/\.dylib$//' -e 's/\.sl$//'`
@ -10401,11 +10394,11 @@ else
# Otherwise, guess the base name of the shlib.
# LDVERSION was added in Python 3.2, before that use VERSION,
# or failing that, $python_version from _PGAC_CHECK_PYTHON_DIRS.
python_ldversion=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LDVERSION'))))"`
python_ldversion=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LDVERSION'))))"`
if test x"${python_ldversion}" != x""; then
ldlibrary="python${python_ldversion}"
else
python_version_var=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('VERSION'))))"`
python_version_var=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('VERSION'))))"`
if test x"${python_version_var}" != x""; then
ldlibrary="python${python_version_var}"
else
@ -10465,7 +10458,7 @@ PL/Python." "$LINENO" 5
fi
python_libspec="-L${python_libdir} -l${ldlibrary}"
python_additional_libs=`${PYTHON} -c "import distutils.sysconfig; print(' '.join(filter(None,distutils.sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
python_additional_libs=`${PYTHON} -c "import sysconfig; print(' '.join(filter(None,sysconfig.get_config_vars('LIBS','LIBC','LIBM','BASEMODLIBS'))))"`
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${python_libspec} ${python_additional_libs}" >&5
$as_echo "${python_libspec} ${python_additional_libs}" >&6; }

6
doc/src/sgml/installation.sgml
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@ -195,10 +195,10 @@ su - postgres
To build the <application>PL/Python</application> server programming
language, you need a <productname>Python</productname>
installation with the header files and
the <application>distutils</application> module. The minimum
required version is <productname>Python</productname> 2.6.
the <application>sysconfig</application> module. The minimum
required version is <productname>Python</productname> 2.7.
<productname>Python 3</productname> is supported if it's
version 3.1 or later; but see
version 3.2 or later; but see
<xref linkend="plpython-python23"/>
when using Python 3.
</para>

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