Compiler blacklist propagation from a dependency to its dependents

[Ryan Schmidt]

On Apr 14, 2020, at 08:27, Ruben Di Battista wrote:

> I’m working on a version bump of vtk. Vtk depends on jsoncpp, which needs a compiler blacklist fix. Now, that compiler fix needs to be propagated also to vtk, since it’s including jsoncpp headers.
> 
> For what I understand, that is not done. So, I need to blacklist the same compiler also on vtk Portfile? Shouldn’t that blacklist get propagated downstream to all the dependents of jsoncpp, in this case? 

Compiler blacklisting is on a port-by-port basis. MacPorts base makes no attempt to propagate one port's blacklist choices to another port, nor to my knowledge has any suggestion or discussion of that been made before.