[Tinycc-devel] Werror-implicit-function-declaration

[foobar]

$ cat test.c
int t(int x) { return f(x)+1; }

$ tcc test.c -c -Werror || echo error
test.c:1: warning: implicit declaration of function 'f'
error

$ tcc test.c -c -Werror-implicit-function-declaration || echo error
test.c:1: warning: implicit declaration of function 'f'

$ tcc test.c -c -Werror=implicit-function-declaration || echo error
test.c:1: warning: implicit declaration of function 'f'


-Werror by itself seems to work, though it unexpectedly prints "warning" 
instead of error.

neither -Werror-implicit-function-declaration nor 
-Werror=implicit-function-declaration work though (the difference is the equals 
sign after Werror), even though that warning type is implemented.

would it be hard to make it work ? would it be a welcome addition ? any other 
thoughts ?