Maybe you are using a old version.
If you enable -Wall which you always should then this flag is automatically enabled.
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#inde...
Maybe you are using a old version.
If you enable -Wall which you always should then this flag is automatically enabled.
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#inde...