--- CMakeLists.txt.orig	2026-03-20 08:48:48 UTC
+++ CMakeLists.txt
@@ -75,7 +75,7 @@ if (${CMAKE_BUILD_TYPE} MATCHES Release)
 endif()
 
 if (${CMAKE_BUILD_TYPE} MATCHES Release)
-  set(EXTRA_FLAGS "-march=native -D_FILE_OFFSET_BITS=64")
+  set(EXTRA_FLAGS "-D_FILE_OFFSET_BITS=64")
   # set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG") # reset CXX_FLAGS to replace -O3 with -Ofast
 endif()