adding a new -f switch

[Jim Wilson]

Sanjiv Kumar Gupta, Noida wrote:
> After flag_dummy changes in toplev.c,
> what all one has to do in order to add a new -f switch.

Try using grep.  Pick an existing switch, like fbuiltin, grep every file 
for it, and then presumably to add a new option you add something 
everyplace where the fbuiltin option is mentioned.  Don't forget to 
check every language front end.

Jim