Index: qcdloop-2.0.5b1/CMakeLists.txt
===================================================================
--- qcdloop-2.0.5b1.orig/CMakeLists.txt
+++ qcdloop-2.0.5b1/CMakeLists.txt
@@ -20,7 +20,7 @@ set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(VERSION "\"${PROJECT_VERSION}\"")
-set(CMAKE_CXX_FLAGS "-Wall -Wextra -march=nocona -mtune=haswell -fvisibility-inlines-hidden -fmessage-length=0 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -fext-numeric-literals")
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -fvisibility-inlines-hidden -fmessage-length=0 -ftree-vectorize -fPIC -fstack-protector-strong -O2 -pipe -fext-numeric-literals")
 set(CMAKE_CXX_FLAGS_DEBUG "${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)