QNX multi-threading gcc libraries / extensions.

Hi, everyone.

I’m using QNX 6.4.1, my current gcc is version 4.3.3. I’m going to do some major multi-threading work so I’d like all
the support I can get. I know some OpenMP and I’ve been reading about Cilk Plus, how they’re extensions available
directly from the gcc compiler.

How would I need to compile a newer version of gcc to enable OpenMP capabilities, Cilk Plus capabilities, or even both?