Macros active in error messages

[Florian Weimer]

* emre brookes:

> I was compiling a project and received an odd message that took some
> digging.
> e.g.
>
> file.cpp:#:#: error: expected unqualified-id before numeric constant
> # | if ( inttype == MyClass::ERROR )
>                              ^~~~~
> where MyClass::ERROR is an enum.
>
> Took some digging to find out ERROR was somewhere #define'd and the
> cure was to #undef ERROR
> Could never find out *where* it was defined - recursively searched all
> include files of the project and /usr/include etc.
> Regardless, it would have been very helpful to know in the error
> messages that a #define was active or to have the ERROR replaced by
> the macro substitution.

Do you use distcc or ccache to build your project?

Thanks,
Florian
-- 
Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn,
Commercial register: Amtsgericht Muenchen, HRB 153243,
Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill