Log Message:
We need -Wl,-Bsymbolic in the linker flags for NetBSD too, not only linux.
The reason is that a plugin may include its private version of some
code that opencpn also has in its source. Without -Bsymbolic the plugin
may use the objects from opencpn instead of its version, and which do
not match the includes it was compiled with, and bad things happens.
bump PKGREVISIONs