+flag.cc += (
+ "-Wall -Wextra -Werror",
+ "-Wno-unknown-pragmas",
+ "-Wno-unused-function",
+ "-Wno-unused-variable",
+ "-Wno-unused-but-set-variable",
+ "-Wno-unused-parameter",
+ "-Wno-discarded-qualifiers",
+ "-Werror=incompatible-pointer-types"
+)