🚀 go-pugleaf

In article <bkFYsLbr@twinsun.com> eggert@twinsun.com (Paul Eggert) writes:
>parma@sophie.ct.picker.com (Michael J. Parma) writes:
>
>>'-Wall' causes the a warning about an unused variable.
>>We don't want _any_ warning messages if we can help it....
>>Something that works on any standard compiler would be welcomed
>
>The easiest way to prevent the warning is to use the variable.  E.g.
>
>	static char rcsid[] = "$Id: ... $";
>	print_version() { printf("version: %s\n", rcsid); }

print_version() should probably be declared static.

>Some compilers remove `rcsid' from the object file if it's not referenced;
>you really must use rcsid if you want it to remain in the object file.

Yuck.  What about rcs_id, sccsid, sccs_id, etc.?

>So GCC's warning is useful.

I would suggest that an unused variable warning is inappropriate if the
variable has been initialized, at least if it is declared to be static.

(Should this be moved to gnu.gcc.bug?)
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