refactor: require sse4.1

Author: variar

CMakeLists.txt

@@ -119,7 +119,7 @@ if(MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj ")
 else()
   ucm_add_flags(CXX "-fno-sized-deallocation -fno-omit-frame-pointer")
-  ucm_add_flags(C CXX "-mmmx -msse -msse2 -msse3 -mssse3 -mpopcnt")
+  ucm_add_flags(C CXX "-mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -mpopcnt")
   if(KLOGG_GENERIC_CPU)
     ucm_add_flags(C CXX "-march=x86-64 -mtune=generic")
   else()