removal of LegacyVersion broke ax_python_dev.m4
The 22.0 release of the python `packaging` package removed the `LegacyVersion` trait, causing ZFS to no longer compile. This commit replaces the sections of `ax_python_dev.m4` that rely on `LegacyVersion` with updated implementations from the upstream `autoconf-archive`. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #14297
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@ -97,22 +97,12 @@ AC_DEFUN([AX_PYTHON_DEVEL],[
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# Check for a version of Python >= 2.1.0
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#
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AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
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ac_supports_python_ver=`cat<<EOD | $PYTHON -
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from __future__ import print_function;
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import sys;
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try:
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from packaging import version;
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except ImportError:
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from distlib import version;
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ver = sys.version.split ()[[0]];
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(tst_cmp, tst_ver) = ">= '2.1.0'".split ();
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tst_ver = tst_ver.strip ("'");
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eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
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EOD`
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ac_supports_python_ver=`$PYTHON -c "import sys; \
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ver = sys.version.split ()[[0]]; \
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print (ver >= '2.1.0')"`
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if test "$ac_supports_python_ver" != "True"; then
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if test -z "$PYTHON_NOVERSIONCHECK"; then
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AC_MSG_RESULT([no])
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m4_ifvaln([$2],[$2],[
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AC_MSG_FAILURE([
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This version of the AC@&t@_PYTHON_DEVEL macro
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doesn't work properly with versions of Python before
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@ -121,7 +111,6 @@ variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
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PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
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Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
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to something else than an empty string.
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])
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])
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else
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AC_MSG_RESULT([skip at user request])
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@ -131,37 +120,47 @@ to something else than an empty string.
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fi
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#
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# if the macro parameter ``version'' is set, honour it
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# If the macro parameter ``version'' is set, honour it.
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# A Python shim class, VPy, is used to implement correct version comparisons via
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# string expressions, since e.g. a naive textual ">= 2.7.3" won't work for
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# Python 2.7.10 (the ".1" being evaluated as less than ".3").
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#
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if test -n "$1"; then
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AC_MSG_CHECKING([for a version of Python $1])
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# Why the strip ()? Because if we don't, version.parse
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# will, for example, report 3.10.0 >= '3.11.0'
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ac_supports_python_ver=`cat<<EOD | $PYTHON -
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from __future__ import print_function;
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import sys;
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try:
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from packaging import version;
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except ImportError:
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from distlib import version;
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ver = sys.version.split ()[[0]];
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(tst_cmp, tst_ver) = "$1".split ();
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tst_ver = tst_ver.strip ("'");
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eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
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EOD`
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cat << EOF > ax_python_devel_vpy.py
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class VPy:
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def vtup(self, s):
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return tuple(map(int, s.strip().replace("rc", ".").split(".")))
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def __init__(self):
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import sys
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self.vpy = tuple(sys.version_info)
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def __eq__(self, s):
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return self.vpy == self.vtup(s)
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def __ne__(self, s):
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return self.vpy != self.vtup(s)
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def __lt__(self, s):
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return self.vpy < self.vtup(s)
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def __gt__(self, s):
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return self.vpy > self.vtup(s)
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def __le__(self, s):
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return self.vpy <= self.vtup(s)
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def __ge__(self, s):
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return self.vpy >= self.vtup(s)
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EOF
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ac_supports_python_ver=`$PYTHON -c "import ax_python_devel_vpy; \
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ver = ax_python_devel_vpy.VPy(); \
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print (ver $1)"`
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rm -rf ax_python_devel_vpy*.py* __pycache__/ax_python_devel_vpy*.py*
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if test "$ac_supports_python_ver" = "True"; 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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m4_ifvaln([$2],[$2],[
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AC_MSG_ERROR([this package requires Python $1.
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If you have it installed, but it isn't the default Python
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interpreter in your system path, please pass the PYTHON_VERSION
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variable to configure. See ``configure --help'' for reference.
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])
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PYTHON_VERSION=""
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])
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fi
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fi
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