X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2FMakefile;h=06c95faf2cb7d552ede947f77c3b1e43aa3a7992;hp=42e4118b5903abe0525f745f5677f51202a2eac1;hb=7196f4c2370d0c7acd8ec3ed8de7ecb7f0682123;hpb=59f7ecdea273442f1c06569f05632cac0000f93f;ds=inline

diff --git a/src/Makefile b/src/Makefile
index 42e4118b..06c95faf 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -292,7 +292,7 @@ ifeq ($(optimize),yes)
 			CXXFLAGS += -fno-gcse -mthumb -march=armv7-a -mfloat-abi=softfp
 		endif
 	endif
-	
+
 	ifeq ($(comp),$(filter $(comp),gcc clang icc))
 		ifeq ($(KERNEL),Darwin)
 			CXXFLAGS += -mdynamic-no-pic
@@ -330,7 +330,7 @@ endif
 ifeq ($(pext),yes)
 	CXXFLAGS += -DUSE_PEXT
 	ifeq ($(comp),$(filter $(comp),gcc clang mingw))
-		CXXFLAGS += -mbmi2
+		CXXFLAGS += -msse4 -mbmi2
 	endif
 endif
 
@@ -381,10 +381,10 @@ help:
 	@echo ""
 	@echo "Supported archs:"
 	@echo ""
-	@echo "x86-64                  > x86 64-bit"
-	@echo "x86-64-modern           > x86 64-bit with popcnt support"
-	@echo "x86-64-bmi2             > x86 64-bit with pext support"
-	@echo "x86-32                  > x86 32-bit with SSE support"
+	@echo "x86-64-bmi2             > x86 64-bit with pext support (also enables SSE4)"
+	@echo "x86-64-modern           > x86 64-bit with popcnt support (also enables SSE3)"
+	@echo "x86-64                  > x86 64-bit generic"
+	@echo "x86-32                  > x86 32-bit (also enables SSE)"
 	@echo "x86-32-old              > x86 32-bit fall back for old hardware"
 	@echo "ppc-64                  > PPC 64-bit"
 	@echo "ppc-32                  > PPC 32-bit"
@@ -407,7 +407,7 @@ help:
 	@echo "Advanced examples, for experienced users: "
 	@echo ""
 	@echo "make build ARCH=x86-64 COMP=clang"
-	@echo "make profile-build ARCH=x86-64-modern COMP=gcc COMPCXX=g++-4.8"
+	@echo "make profile-build ARCH=x86-64-bmi2 COMP=gcc COMPCXX=g++-4.8"
 	@echo ""