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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_posix.test_makedev fails on Musl systems","articleBody":"# Bug report\n\n### Bug description:\n\nThis test depends on platform C library defining NODEV which is there on glibc but not on musl C library implementation on Linux. This is introduced with \n\nhttps://github.com/python/cpython/pull/31794\n\n[Alpine has disabled portions](https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/main/python3/test_posix-nodev-disable.patch) of above patch to get it going on musl by applying this patch\n\n```diff\ndiff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py\nindex 7ed45ac..a35c6db 100644\n--- a/Lib/test/test_posix.py\n+++ b/Lib/test/test_posix.py\n@@ -724,7 +724,7 @@ def test_makedev(self):\n             self.assertRaises((ValueError, OverflowError), posix.makedev, x, minor)\n             self.assertRaises((ValueError, OverflowError), posix.makedev, major, x)\n\n-        if sys.platform == 'linux':\n+        if False:\n             NODEV = -1\n             self.assertEqual(posix.major(NODEV), NODEV)\n             self.assertEqual(posix.minor(NODEV), NODEV)\n```\n\n### CPython versions tested on:\n\n3.13\n\n### Operating systems tested on:\n\nLinux","author":{"url":"https://github.com/kraj","@type":"Person","name":"kraj"},"datePublished":"2025-09-09T17:11:22.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/138707/cpython/issues/138707"}