[boost] [system] Problem with boost::system::system_category() under QNX Momentics

At the beginning I must assure You that I've tried almost every solution from similar topics , still they didn't solve my issue. I'm building binaries from Boost 1.57 using **MinGW**. Boost libraries I'm using: *thread* and *system* build without any errors. I was trying:

toolset=gcc --target-os=qnxnto and toolset=gcc --target-os=qnx, both didn't work.

I'm including correctly both libraries:

-lboost_system-mgw48-mt-d-1_57 -lboost_thread-mgw48-mt-d-1_57

after using:

`#define BOOST_SYSTEM_NO_DEPRECATED`

I got rid of `boost::system::generic_category()` error, still I can't get rid of:

boost::system::system_category()

I'm working in **QNX Momentics**. I'm totally out of ideas, I'm really looking forward for any help I can get.