Possibility to differentiate between Neutrino and QNX4

QNX DEVELOPERS General Programming
1

Hi Community

does it gives a possibility to differentiate between Neutrino and QNX4
with preproc. like this

#elif defined ( QNX )
/something important/
#else

Thank You

2

QNX4 defines QNX
and NTO defines QNXNTO

3

Great Thank You mario!!!

4

Both QNX 4 and QNX6/NTO defines QNX
Only QNX6/NTO defines QNXNTO

#if defined(__QNX__)
   #if defined(__QNXNTO__)
      qnx6/nto stuff
   #else
      qnx4 stuff
   #endif
#endif