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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
This commit is contained in:
Matthew Ahrens 2023-01-05 11:04:24 -08:00 committed by Tony Hutter
parent be697f4339
commit 37dbf91c8a
1 changed files with 35 additions and 36 deletions
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71
config/ax_python_devel.m4
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@ -97,23 +97,13 @@ AC_DEFUN([AX_PYTHON_DEVEL],[
# Check for a version of Python >= 2.1.0
#
AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
ac_supports_python_ver=`cat<<EOD | $PYTHON -
from __future__ import print_function;
import sys;
try:
from packaging import version;
except ImportError:
from distlib import version;
ver = sys.version.split ()[[0]];
(tst_cmp, tst_ver) = ">= '2.1.0'".split ();
tst_ver = tst_ver.strip ("'");
eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
EOD`
ac_supports_python_ver=`$PYTHON -c "import sys; \
ver = sys.version.split ()[[0]]; \
print (ver >= '2.1.0')"`
if test "$ac_supports_python_ver" != "True"; then
if test -z "$PYTHON_NOVERSIONCHECK"; then
AC_MSG_RESULT([no])
m4_ifvaln([$2],[$2],[
AC_MSG_FAILURE([
AC_MSG_FAILURE([
This version of the AC@&t@_PYTHON_DEVEL macro
doesn't work properly with versions of Python before
2.1.0. You may need to re-run configure, setting the
@ -122,7 +112,6 @@ PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
to something else than an empty string.
])
])
else
AC_MSG_RESULT([skip at user request])
fi
@ -131,37 +120,47 @@ to something else than an empty string.
fi
#
# if the macro parameter ``version'' is set, honour it
# If the macro parameter ``version'' is set, honour it.
# A Python shim class, VPy, is used to implement correct version comparisons via
# string expressions, since e.g. a naive textual ">= 2.7.3" won't work for
# Python 2.7.10 (the ".1" being evaluated as less than ".3").
#
if test -n "$1"; then
AC_MSG_CHECKING([for a version of Python $1])
# Why the strip ()? Because if we don't, version.parse
# will, for example, report 3.10.0 >= '3.11.0'
ac_supports_python_ver=`cat<<EOD | $PYTHON -
from __future__ import print_function;
import sys;
try:
from packaging import version;
except ImportError:
from distlib import version;
ver = sys.version.split ()[[0]];
(tst_cmp, tst_ver) = "$1".split ();
tst_ver = tst_ver.strip ("'");
eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
EOD`
cat << EOF > ax_python_devel_vpy.py
class VPy:
def vtup(self, s):
return tuple(map(int, s.strip().replace("rc", ".").split(".")))
def __init__(self):
import sys
self.vpy = tuple(sys.version_info)
def __eq__(self, s):
return self.vpy == self.vtup(s)
def __ne__(self, s):
return self.vpy != self.vtup(s)
def __lt__(self, s):
return self.vpy < self.vtup(s)
def __gt__(self, s):
return self.vpy > self.vtup(s)
def __le__(self, s):
return self.vpy <= self.vtup(s)
def __ge__(self, s):
return self.vpy >= self.vtup(s)
EOF
ac_supports_python_ver=`$PYTHON -c "import ax_python_devel_vpy; \
ver = ax_python_devel_vpy.VPy(); \
print (ver $1)"`
rm -rf ax_python_devel_vpy*.py* __pycache__/ax_python_devel_vpy*.py*
if test "$ac_supports_python_ver" = "True"; then
AC_MSG_RESULT([yes])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
m4_ifvaln([$2],[$2],[
AC_MSG_ERROR([this package requires Python $1.
AC_MSG_ERROR([this package requires Python $1.
If you have it installed, but it isn't the default Python
interpreter in your system path, please pass the PYTHON_VERSION
variable to configure. See ``configure --help'' for reference.
])
PYTHON_VERSION=""
])
PYTHON_VERSION=""
fi
fi