> I wonder if one can instruct the xlc compiler to issue a warning message
> whenever a function is used but not prototyped. Other ANSI C compilers
> I've used before generate such warning unless explicitly suppressed.
> However xlc seems happy with that.
> Have I overlooked any option on the man page?
design document for the compiler. The assumption was that most people
would be migrating K&R code and did not want to deal with the error
messages. You might want to contact your local IBM representative
and request a "design change." Until then, I recommend using 'lint'
to check your code.