Drop sse from target "x86-32"

have maximal compatibility on legacy target arch, now supporting AMD Athlon

The old behavior can anyway be selected by the user if needed, for example

make -j profile-build ARCH=x86-32 sse=yes

fixes #3904
closes https://github.com/official-stockfish/Stockfish/pull/3918

No functional change

diff --git a/src/Makefile b/src/Makefile
index 9666f13846325d709bb8904dc07a34efe46e477c..eff8bacae0abec256c9404bec30c8ca12b2839dc 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -152,7 +152,7 @@ ifeq ($(findstring x86,$(ARCH)),x86)
 ifeq ($(findstring x86-32,$(ARCH)),x86-32)
        arch = i386
        bits = 32
-       sse = yes
+       sse = no
        mmx = yes
 else
        arch = x86_64