[PATCH] scripts/glibcelf.py: Mark as UNSUPPORTED on Python 3.5 and earlier

[Adhemerval Zanella]

On 25/04/2022 04:17, Florian Weimer via Libc-alpha wrote:
> * Florian Weimer:
> 
>> enum.IntFlag and enum.EnumMeta._missing_ support is not present in those
>> Python versions.
>>
>> ---
>>  scripts/glibcelf.py | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/scripts/glibcelf.py b/scripts/glibcelf.py
>> index 8f7d0ca184..da0d5380f3 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
> 
> I've pushed this, to avoid masking other failures in Joseph's tester.

We still indicate that Python 3.4 is supported on INSTALL. I think we
should either update it or add a fallback code on glibcelf.py.