qt4-mac-mariadb-plugin causes trouble during upgrade of KDE4 ports

[mkae (Marko Käning)]

Recently I ran into this oddity with KDE4 ports:

--->  Updating database of binaries
--->  Scanning binaries for linking errors               
--->  Found 5 broken file(s), matching files to ports    
--->  Found 3 broken port(s), determining rebuild order
--->  Rebuilding in order
     kdepimlibs4 @4.14.3 
     kde4-runtime @4.14.4.20150225 +samba
     kmymoney4-devel @4.8-20161022 
Warning: No port py27-gtk found in the index.
--->  Computing dependencies for qt4-mac-mysql5-plugin
Error: Unable to exec port: Can't install qt4-mac-mysql5-plugin because conflicting ports are active: qt4-mac-mariadb-plugin
Error rebuilding kdepimlibs4

Why is it that those KDE4 ports suddenly want the mysql5 plugin and are not happy with the installed mariadb plugins anymore?

I have already uninstalled konversation, but as shown above there are more troubling ports...

[RJVB (René Bertin)]

I haven't traced this to see who depends on the mysql plugin but it would seem that a path:-style depspec has been replaced with an explicit depspec, or an update to a shared dependency introduced this new depspec.

I'd also raise the question why there have to individual mysql5 and mariadb plugins. AFAIK the whole idea after MariaDB is that it's a drop-in replacement for the regular MySql. The corresponding Qt5 plugin uses variants, but it would certainly be possible to use only path:-style depspecs (if port:mysql5x and port:mariadb were mutually exclusive alternatives).

Whe

[mkae (Marko Käning)]

I've realised that I still had an older MacPorts ports tree on my host system. That somehow interfered with the more up-to-date rsynced data from MacPorts' central server. I have no idea what caused this collision, but after rebuilding the 3 ports above all is back to normal now.

[RJVB (René Bertin)]

I've run into issues with supposedly unused port trees too. Removing a source from sources.conf wasn't enough, I also had to delete the PortIndex files in the ports directory.