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package/zfs: fix python3 support check

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Backport an upstream commit fixing the python3 support check

"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`."

Add a comment above ZFS_AUTORECONF.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/4322819411
https://gitlab.com/buildroot.org/buildroot/-/jobs/4322819410
https://gitlab.com/buildroot.org/buildroot/-/jobs/4322819409

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Romain Naour 2023-05-28 14:42:08 +02:00 committed by Peter Korsgaard
parent 30a4e35c39
commit 2816038d8b
2 changed files with 135 additions and 0 deletions
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134
package/zfs/0001-removal-of-LegacyVersion-broke-ax_python_dev.m4.patch Normal file
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@ -0,0 +1,134 @@
From ad2c8e13e42bc2f396cce117d17a227dadedd476 Mon Sep 17 00:00:00 2001
From: Romain Naour <romain.naour@gmail.com>
Date: Thu, 5 Jan 2023 11:04:24 -0800
Subject: [PATCH] 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
Upstream: https://github.com/openzfs/zfs/commit/b72efb751147ab57afd1588a15910f547cb22600
[Romain: backport to 2.1.7]
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
config/ax_python_devel.m4 | 71 +++++++++++++++++++--------------------
1 file changed, 35 insertions(+), 36 deletions(-)
diff --git a/config/ax_python_devel.m4 b/config/ax_python_devel.m4
index 7adcf01a0..9eef45065 100644
--- a/config/ax_python_devel.m4
+++ b/config/ax_python_devel.m4
@@ -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
--
2.34.3

1
package/zfs/zfs.mk
View File

@ -12,6 +12,7 @@ ZFS_LICENSE_FILES = LICENSE COPYRIGHT
ZFS_CPE_ID_VENDOR = openzfs
ZFS_CPE_ID_PRODUCT = openzfs
# 0001-removal-of-LegacyVersion-broke-ax_python_dev.m4.patch
ZFS_AUTORECONF = YES
ZFS_DEPENDENCIES = libaio openssl udev util-linux zlib libcurl