Hi,
  I'm new to QNX and I was wondering whether or not exists a numerical library available for QNX. I need  a library with
 linear equation and numerical derivatives algorithms so I could generate an executable out of it. I would like to link 
it with C++ code.

I've successfully compiled GSL on QNX, which is a C library, but I would like to hear opinions from you guys. 

Any recommendations?

TIA,
  Flávio Duarte