cmake: disable SSE4.2 by default

this commit is not cherry-picked from fb upstream, as it added "PORTABLE"
and "FORCE_SSE42" to do this.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b1719de5776a23a594e0865901948eb16999352..5f82b33af921badfbfbf7df70b7088a68b8f58d2 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -125,7 +125,7 @@ if(WIN32)
     endif()
   endif()
 else()
-  option(WITH_SSE42 "build with SSE4.2" ON)
+  option(WITH_SSE42 "build with SSE4.2" OFF)
   if(WITH_SSE42)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.2")
   endif()