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: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=052dce6a150c5dfc4a4775fc23319028904a86ab;p=fairystockfish.git

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
---

diff --git a/src/Makefile b/src/Makefile
index 8572369..4fe4095 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -539,7 +539,10 @@ ifeq ($(optimize),yes)
 	endif
 
 	ifeq ($(comp),clang)
-		CXXFLAGS += -fexperimental-new-pass-manager
+		clangmajorversion = $(shell $(CXX) -dumpversion 2>/dev/null | cut -f1 -d.)
+		ifeq ($(shell expr $(clangmajorversion) \< 16),1)
+			CXXFLAGS += -fexperimental-new-pass-manager
+		endif
 	endif
 endif