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package/python-iptables: account for platform tag in extensions

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EXT_SUFFIX in Python versions > 3.5 contains a platform tag which only applies
to cpython extensions. Given that ctypes.util.find_library does not work on the
target due to the absence of the underlying tools '.so' needs to be added as a
possible suffix for libraries to enable python-iptables to find the iptables
shared libraries.

Signed-off-by: Frank Vanbever <frank.vanbever@essensium.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Frank Vanbever 2020-03-11 11:54:47 +01:00 committed by Yann E. MORIN
parent 90c18ab269
commit 52276cdda3
1 changed files with 57 additions and 0 deletions
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57
package/python-iptables/0002-Add-.so-as-additional-shared-object-suffix.patch Normal file
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@ -0,0 +1,57 @@
From 899d25c511c6ce779b7153e9ae2e41055b30b9c5 Mon Sep 17 00:00:00 2001
From: Frank Vanbever <frank.vanbever@essensium.com>
Date: Mon, 9 Mar 2020 12:36:47 +0100
Subject: [PATCH] Add '.so' as additional shared object suffix
EXT_SUFFIX includes a platform information tag starting from Python 3.5 [0]
For example:
>>> sysconfig.get_config_var("EXT_SUFFIX")
'.cpython-38-aarch64-linux-gnu.so'
This suffix only applies to cpython extensions i.e. not to the iptables shared
objects.
Adding '.so' as an additional suffix for shared objects fixes the issue.
Fixes: Issue #301
Signed-off-by: Frank Vanbever <frank.vanbever@essensium.com>
Backported from: 899d25c511c6ce779b7153e9ae2e41055b30b9c5
[0]: https://docs.python.org/3/whatsnew/3.5.html#build-and-c-api-changes
---
iptc/util.py | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/iptc/util.py b/iptc/util.py
index e6b1649..04fe905 100644
--- a/iptc/util.py
+++ b/iptc/util.py
@@ -80,12 +80,19 @@ def _do_find_library(name):
def _find_library(*names):
+ exts = []
if version_info >= (3, 3):
- ext = get_config_var("EXT_SUFFIX")
+ exts.append(get_config_var("EXT_SUFFIX"))
else:
- ext = get_config_var('SO')
+ exts.append(get_config_var('SO'))
+
+ if version_info >= (3, 5):
+ exts.append('.so')
+
for name in names:
- libnames = [name, "lib" + name, name + ext, "lib" + name + ext]
+ libnames = [name, "lib" + name]
+ for ext in exts:
+ libnames += [name + ext, "lib" + name + ext]
libdir = os.environ.get('IPTABLES_LIBDIR', None)
if libdir is not None:
libdirs = libdir.split(':')
--
2.20.1