Document IMPORTED targets are treated as SYSTEM in more places
The SYSTEM
target property documentation mentions that consumed IMPORTED
targets are treated as SYSTEM
by default. However, neither the Importing and Exporting Guide nor the IMPORTED
target property documentation mention that. I suggest amending those entries to also mention the same.
(This would have saved me some time in a project where I did not understand why some include paths are generated as system-include ones, even though SYSTEM
was nowhere to be seen).