Use LIB_DEPENDS when appropriate.

[mat]

Summary

Lots of KDE components are providing libraries, and they were,
strangely, written as BUILD_ or RUN_DEPENDS, with a full path to the
library. Change this so that if a component is needed at both build,
and, run-time, then it gets a LIB_DEPENDS.

[rakuco]

Looks fine to me. I'm pretty sure we can drop the absolute paths from all <component>_PATHs that are not runtime dependencies by default and simplify that dependency logic, but that can be done separately in the future and probably requires an exp-run.

[tcberner]

Looks fine to me.

[tcberner]

editors/kate-plugin-pate fails to build:
Error: pattern kde4/kpythonpluginfactory.so in LIB_DEPENDS is not valid

[mat]

In D7625#158682, @tcberner wrote:

editors/kate-plugin-pate fails to build:
Error: pattern kde4/kpythonpluginfactory.so in LIB_DEPENDS is not valid

I knew it was too easy :-)

[mat]

• Try something else.
• And now for something completely different.
• Add the KDE libs to the proxydeps thingie.

[mat]

• There are a few qt components that ends in -qtX instead of starting with

[tcberner]

In D7625#158835, @mat wrote:

• There are a few qt components that ends in -qtX instead of starting with

They should've been renamed to qtX-foo a long time ago, if you ask me.

[tcberner]

From what I have tested it seems fine.