[issue37631] EXTRA_CFLAGS get overrided by CFLAGS_NODIST

[Marcel Plch]

New submission from Marcel Plch <mplch at redhat.com>:

Problem:
If you want to override CFLAGS by setting EXTRA_CFLAGS, they may have no effect if there are contrary flags in the CFLAGS_NODIST variable.

How to reproduce:
make CFLAGS_NODIST="-O2" EXTRA_CFLAGS="-Og"

If you look at GCC arguments, there is -O2 present *after* the -Og flag. This means -Og gets ignored.

----------
components: Build
messages: 348168
nosy: Dormouse759
priority: normal
severity: normal
status: open
title: EXTRA_CFLAGS get overrided by CFLAGS_NODIST
type: behavior
versions: Python 3.7, Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37631>
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