Dealing with warnings on __attribute__((user)) when dehydra is not loaded

Fri Oct 16 14:16:00 GMT 2009

Diego Novillo wrote:
> On Fri, Oct 16, 2009 at 08:44, Basile STARYNKEVITCH
> <> wrote:
>> I have a simpler suggestion:
>> every attribute whose name starts with an underscore like "_user" or
>> "_foogreen" or "_BORING" never produce any warnings, except perhaps in the
>> plugin handling it.
> Yeah.  Or perhaps a variant of this.  Allow -Wno-attribute to take as
> argument the name of the attribute you want to ignore.

I am not convinced that exactly is a very good idea. I would expect that 
with plugins, we'll have significantly more attributes. I don't know if 
having a really big CFLAGS (in Linux Makefile parlance) is a good idea.

The proposed underscore notation is quite simple, and suggest a notation 
to separate the important attributes (those handled by GCC core) from 
the other ones.

A more sophisticated variant would be to have every attribute belonging 
to some attribute class, and have Wno-attributes=attributeclass but I 
feel that is too complex!


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