--- a/CMakeLists.txt	2020-01-15 22:17:59.921502029 +0100
+++ b/CMakeLists.txt	2020-01-15 22:19:55.834885195 +0100
@@ -48,7 +48,6 @@
 set(RCC_OPTIONS -compress 9 -threshold 0)
 
 # Use C++11.
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
 
@@ -56,7 +55,6 @@
 set(POSITION_INDEPENDENT_CODE True)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wstrict-overflow")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wstrict-aliasing")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
 
 if (NOT WIN32)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector-all")