-fsigned-char
-fno-math-errno
-fno-signed-zeros
-fno-stack-protector
-fomit-frame-pointer
-Werror
-Wfatal-errors
-Wno-assume
-Wno-constant-conversion
-Wno-int-to-pointer-cast
-Wno-pointer-sign
-Wno-pointer-to-int-cast
-Wno-shift-op-parentheses
-Wno-parentheses
-Wno-string-plus-int
-Wno-unused-result