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Re: [patch] fix _OBJC_Module defined but not used warning

On 06/08/2015 04:03 AM, Iain Sandoe wrote:
Hi Aldy,

On 7 Jun 2015, at 12:37, Aldy Hernandez wrote:

On 06/07/2015 06:19 AM, Andreas Schwab wrote:
Another fallout:

FAIL: obj-c++.dg/ -fgnu-runtime (test for excess errors)
Excess errors:
<built-in>: warning: '_OBJC_Module' defined but not used [-Wunused-variable]

check_global_declarations is called for more symbols now.  All the defined but not used errors I've seen in development have been legitimate.  For tests, the tests should be fixed.  For built-ins such as these, does the attached fix the problem?

It is up to the objc maintainers, we can either fix this with the attached patch,

The current patch is OK.



This seems a better long-term idea; however, I would prefer to go through all the cases where it would be applicable (including for the NeXT runtime) and apply that change as a coherent patch.  At the moment dealing with the NeXT stuff is a bit hampered by pr66448.

On my list next.


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