[issue38877] Python 3.9 build fails under Debian 9.11

[Florian Dahlitz]

New submission from Florian Dahlitz <f2dahlitz at freenet.de>:

Today, I tried to build Python 3.9 from source, which failed. Building it without optimizations enabled fails due to an Segmentation fault (output_without.txt) and building with optimizations fails with a profile-opt error (output.txt).

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux bullseye/sid
Release:	9.11
Codename:	stretch

----------
components: Build
files: output.txt
messages: 357168
nosy: DahlitzFlorian
priority: normal
severity: normal
status: open
title: Python 3.9 build fails under Debian 9.11
type: compile error
versions: Python 3.9
Added file: https://bugs.python.org/file48729/output.txt

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<https://bugs.python.org/issue38877>
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