From: Sebastian Buchwald <UniQP@web.de>
Date: Sat, 11 Mar 2023 21:08:35 +0000 (+0100)
Subject: Fix Makefile for clang 16
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=d1e17989b51f220629e4e81a4bf413974f4b18e2;hp=d1e17989b51f220629e4e81a4bf413974f4b18e2;p=stockfish

Fix Makefile for clang 16

The clang 16 release will remove the -fexperimental-new-pass-manager
flag (see https://github.com/llvm/llvm-project/commit/69b2b7282e92a1b576b7bd26f3b16716a5027e8e).
Thus, the commit adapts the Makefile to use this flag only for older
clang versions.

closes https://github.com/official-stockfish/Stockfish/pull/4437

No functional change
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