From http://www.qnx.com/developers/docs/6.3.0SP3/neutrino/utilities/q/qcc.html , I understand that QCC compiler should 
be a built in compiler in QNX Neutrino RTOS but I am constantly getting error as follows:

/bin/sh : QCC: cannot execute - No such file or directory

whenever I try to compile my program using the QCC compiler.

Do we have to separately download QCC compiler and if yes please give me the download link

Thanks!
Shashank