[PATCH 0/1] MR4423: configure: Explicitly disable -Wformat warnings in imported libraries.

[Jacek Caban (＠jacek)]

-Wformat is enabled by -Wall on GCC, so skipping -W* flags on external libs is enough to disable it.
On Clang it's enabled by default, so we need to disable it explicitly.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/4423