Building of static libraries is broken

[s-ludwig]

See SiegeLord/DAllegro5#13. Building a static library currently uses the same separate compile/link steps as for normal builds. It should just use -lib instead and drop the linking stage.

[tavi-cacina]

Also using a staticLibrary package as a dependency does not work as expected. It is not the generated lib that gets integrated in the main package, but all the lib's source files. Thus the lib dependency acts like a sourceLibrary.

[eskimor]

Also true for executable dependencies as pointed out by: Nick Sabalausky

[s-ludwig]

I think executable dependencies might be a (slightly) different thing than library dependencies, as the same package can have library and application configurations at the same time, which obviously creates a conflict here if both are needed for some reason (not likely, but probably still better to avoid introducing artificial limitations).

[s-ludwig]

Fixed since 0.9.21.