games/openspades: Convert to USES=magick

[zirias]

Summary

Depends on D39424

[fsbruva_yahoo.com]

Proposed change materially changes the build dependencies of the port.

games/openspades/Makefile

26

@AMDmi3 Same question as the others. Does OpenSpades require ImageMagick 6 only? Can it build with 7?

[zirias]

I will answer to just one of them:

• Any ImageMagick package will conflict with any other, so a version or flavor argument to the USES should *only* be given if strictly needed for the port, otherwise it should go with the user's choice in DEFAULT_VERSIONS
• From a direct dependency, you can't know whether this specific version/flavor is really needed
• For anything but a lib dependency, it's very unlikely a specific version is needed
• For build dependencies, I tested it myself
• Reviews are here for the maintainer to double-check, just in case