X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2FMakefile;h=70246f5629337e627e0fb85541a7dca6c0b7c9dc;hp=285d314ec302d34e9d200bce53fa5c42ad243fdf;hb=d703d2b5e760edf4d34b6664f2d0552ffe424b12;hpb=fa1a2a0667ff81f04e94cab078c50c2d51f4cb5e

diff --git a/src/Makefile b/src/Makefile
index 285d314e..70246f56 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -328,7 +328,7 @@ endif
 ifeq ($(pext),yes)
 	CXXFLAGS += -DUSE_PEXT
 	ifeq ($(comp),$(filter $(comp),gcc clang mingw))
-		CXXFLAGS += -mbmi2
+		CXXFLAGS += -msse4 -mbmi2
 	endif
 endif
 
@@ -379,10 +379,10 @@ 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"
@@ -405,7 +405,7 @@ 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 ""