--- CMakeLists.txt.orig	2021-05-24 04:46:52 UTC
+++ CMakeLists.txt
@@ -33,7 +33,7 @@ include(CPack)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_FLAGS "-Wall -Wextra -Werror ${CMAKE_CXX_FLAGS}")
+set(CMAKE_CXX_FLAGS "-Wextra -Werror ${CMAKE_CXX_FLAGS}")
 set(CMAKE_CXX_FLAGS "-Wno-noexcept-type ${CMAKE_CXX_FLAGS}")
 set(CMAKE_CXX_FLAGS "-Wno-deprecated-declarations ${CMAKE_CXX_FLAGS}")