add_flags(CMAKE_C_FLAGS
     -fno-common
     -Wall
-    -Werror
     -Wextra
     -Wformat=2
     -Winit-self
     )
 endif()
 
-set(CMAKE_C_FLAGS_DEBUG "-g -DDEBUG=1")
+set(CMAKE_C_FLAGS_DEBUG "-g -DDEBUG=1 -Werror")
 set(CMAKE_C_FLAGS_RELEASE "-O2")
 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g")