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commit 83cc145830bdbefdabe03787ed884d548bea9c99
Author: Florian Weimer <fweimer@redhat.com>
Date:   Fri Apr 22 19:34:52 2022 +0200

    scripts/glibcelf.py: Mark as UNSUPPORTED on Python 3.5 and earlier
    
    enum.IntFlag and enum.EnumMeta._missing_ support are not part of
    earlier Python versions.
    
    (cherry picked from commit b571f3adffdcbed23f35ea39b0ca43809dbb4f5b)

diff --git a/scripts/glibcelf.py b/scripts/glibcelf.py
index 8f7d0ca184845714..da0d5380f33a195e 100644
--- a/scripts/glibcelf.py
+++ b/scripts/glibcelf.py
@@ -28,6 +28,12 @@ import collections
 import enum
 import struct
 
+if not hasattr(enum, 'IntFlag'):
+    import sys
+    sys.stdout.write(
+        'warning: glibcelf.py needs Python 3.6 for enum support\n')
+    sys.exit(77)
+
 class _OpenIntEnum(enum.IntEnum):
     """Integer enumeration that supports arbitrary int values."""
     @classmethod