X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2FMakefile;h=782971e938c1364494642aa17112f8c3fda1319c;hp=71aa7b30d195370738bcab3705f4385b7328b308;hb=96f4ab48d8b2e3129a2d028f7739f12db2200667;hpb=39c08c17c5812dc947d83a07cae702029319af2f

diff --git a/src/Makefile b/src/Makefile
index 71aa7b30..782971e9 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -270,7 +270,7 @@ ifeq ($(optimize),yes)
 	endif
 
 	ifeq ($(comp),clang)
-		CXXFLAGS += -O3
+		CXXFLAGS += -O4
 
 		ifeq ($(os),osx)
 			ifeq ($(arch),i386)