[cmake-developers] target_link_libraries, IMPORTED targets and SYSTEM includes

[Matthew Woehlke]

On 2013-07-25 11:25, Stephen Kelly wrote:
> Brad King wrote:
>> On 07/25/2013 09:16 AM, Stephen Kelly wrote:
>>> Should we treat the INTERFACE_INCLUDE_DIRECTORIES of all IMPORTED targets
>>> as SYSTEM includes automatically?
>>
>> I don't think so because one could be importing targets from a dependency
>> that was just built as part of a "superbuild" and may want to see the
>> warnings.
>
> I considered that, but if you're building it as part of a superbuild, you'll
> still get the warning when building the dependency itself.

Not necessarily; library A may provide a utility header that it doesn't 
actually use internally, and library B may use it and produce a warning. 
(Besides there is more chance of noticing a warning the more times it 
trips. For that matter, wouldn't this defeat the purpose in the original 
post of being able to include Qt as non-SYSTEM?)

-- 
Matthew