[Libguestfs] daemon/ warnings

[Jim Meyering]

Richard W.M. Jones wrote:
> On Mon, Aug 10, 2009 at 10:15:45AM +0100, Matthew Booth wrote:
>> In general, I would like to get down to no compiler warnings. The
>> biggest culprit in daemon, though, is rpcgen generated stuff.
>
> In libvirt we have some Perl scripts that attempt to rewrite the
> output of rpcgen-generated code to remove warnings.
>
> It's quite a bit of hassle though, and of course depends closely on
> the version of rpcgen (which is enforced in libvirt I think).
>
> Personally I'd prefer it if we could compile the rpcgen code with
> -Wno-unused -fno-strict-alias.  However automake doesn't support
> providing CFLAGS for just a single file.

One option is to add this to the generated file:

#if (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) || 4 < __GNUC__
# pragma GCC diagnostic ignored "-Wunused"
#endif

I don't know if that will work with strict aliases.