--- a/CMakeLists.txt	2022-09-19 11:13:08.777453946 +0200
+++ b/CMakeLists.txt	2022-09-19 11:13:27.315507011 +0200
@@ -20,7 +20,7 @@
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(VERSION "\"2.0.9\"")
-set(CMAKE_CXX_FLAGS "-Wall -Wextra -march=nocona -mtune=haswell -fvisibility-inlines-hidden -fmessage-length=0 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -fext-numeric-literals")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fext-numeric-literals")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fsanitize=address -fPIC ${CMAKE_CXX_FLAGS}" CACHE STRING "debug compile flags" FORCE)
 set(CMAKE_EXE_LINKER_FLAGS_DEBUG "-fsanitize=address" CACHE STRING "debug linker flags" FORCE)
 set(prefix ${CMAKE_INSTALL_PREFIX})