-Werror on amd64 BSP makes it to installed package configuration file

[Chris Johns]

> On 20 Aug 2022, at 3:39 am, Joel Sherrill <joel at rtems.org> wrote:
> 
> Hi
> 
> Stephen tripped across this and I'm reporting it because it is going to 
> take some discussion to resolve.
> 
> Stephen is using the .pc files to create a configuration file
> for the FACE Conformance Test Suite. This is now basically working
> for multiple BSPs. The amd64 includes -Werror in its BSP compiler
> options and is the only BSP to do so.

Looks like a bug to me. It should not be in the standard CFLAGS returned by pkgconfig. 

> (1) Do we want a BSP to include -Werror? amd64 being the only one
> and use having a history of chasing warnings after gcc upgrades.

Yes remove. 

Chris

> (2) I though warning flags were filtered out on the install. I'm not finding
> the code to do it but shouldn't this be filtered out like the other warning flags?
> 
> Any other thoughts?
> 
> --joel
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