--- demo_kplib/CMakeLists.txt.orig	2022-07-23 20:23:38 UTC
+++ demo_kplib/CMakeLists.txt
@@ -3,7 +3,7 @@ project(demo_kplib)
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Werror -fPIC")
 set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g")                 # Debug mode.
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native")    # Default optimization.
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")    # Default optimization.
 
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)