[PATCH 2/3] Do not add some unneeded linker flags when on BSD.

[Raphael Kubo da Costa]

Raphael Kubo da Costa <rakuco at FreeBSD.org> writes:

> I guess we're good to go here.

Done; I've pushed ad89c051cfd9483f2cb90ed1a5bf8462ba0fa1a2 and
7752d6d5b9b67987d4631cca4ce192069697a4e2 to e-c-m, and backported them
to KDE/4.9.