Russ Cox wrote: > If you have a function that takes an argument you > don't need to use, then simply delete the name of > the argument. Instead of > void nop(int s) { } > you write > void nop(int) { } > Or you insert USED(s). > Or you disable all warnings with -w.
Note that you still need the #ifdef PLAN9 ... #endif, since that isn't standard C.