scope of "local" PortGroup definition files

[René J.V. Bertin]

Correction: 

This is not limited to the compiler blacklist portgroup, nor to Linux.

Exactly as I feared, my changes to the qt4, qt5 and kde4 portgroups need to be copied to the portgroup directory in the default tree if they are to be visible to all ports and not just to the ports in the local repository.

Which means that every selfupdate will undo any changes you might have applied.

Out of curiosity, what if I set my local repository to be the default? Will selfupdate update that tree, or will it continue to update the one under ${prefix}/var/macports/source/.... ?

R.