From: Joost VandeVondele <Joost.VandeVondele@gmail.com>
Date: Mon, 24 Aug 2020 19:32:04 +0000 (+0200)
Subject: Check ARCH=.... variable
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=b0b4ca17db49ed03057b5fa4ee4a12dab0e9c9e6;hp=b0b4ca17db49ed03057b5fa4ee4a12dab0e9c9e6;p=stockfish

Check ARCH=.... variable

to prevent user errors or generating untested code,
check explicitly that the ARCH variable is equivalent to a supported architecture
as listed in `make help`.

To nevertheless compile for an untested target the user can override the internal
variable, passing the undocumented `SUPPORTED_ARCH=true` to make.

closes https://github.com/official-stockfish/Stockfish/pull/3062

No functional change.
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