bug: undefined reference for thread.h

[Tilson Chung]

Hi, 
    I was compiling first of the example code provided from http://mirrorlynx.com/~dan/ccpp-doc/examples.html under QNX 6.3.0 with GCC2.95.3, with commoncpp2-1.3.19, and I encountered the following "undefined reference".  Please help. Thanks. 

Error undefined reference to `typeinfo for ost::Thread'[kitchen.o:/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 126

Error undefined reference to `ost::Thread::~Thread()'[/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 127

Error undefined reference to `ost::Thread::getExtended()'[kitchen.o:/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 127

Error undefined reference to `ost::Thread::initial()'[kitchen.o:/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 127

Error undefined reference to `ost::Thread::notify(ost::Thread*)'[kitchen.o:/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 127

Error undefined reference to `ost::Thread::Thread(int, unsigned)'[/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 127

Error undefined reference to `ost::Thread::sleep(unsigned long)'[/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 1232

Error undefined reference to `ost::Thread::start(ost::Semaphore*)'[/usr/qnx630/target/qnx6/usr/include/cpp/xlocale] kitchen line 1232