Is your feature request related to a problem? Please describe.

Support for QNX is valuable to an increasing number of users (e.g., safety-critical embedded systems software implemented with C++). However, Google Test fails to build for QNX:

cc1plus: error: command line option '-pthread' is valid for the driver but not for C++

Describe the solution you'd like
On QNX, pthread is part of libc. There's no separate pthread library to link. See section "Library" in the pthread_create() reference manual of QNX.

Describe alternatives you've considered
None

Additional context
The feature is specific to QNX and the qcc compiler.