Order of linking

Multithreaded applications must link the Threads Library in such a way that it is initialized before all of the networking libraries. (However, if a single-threaded application links the Threads Library solely in order to access the synchronization primitives for inter-process synchronization, then it should make sure that the Threads Library is initialized after all of the networking libraries.)

For example, in order for your multithreaded XTI application to operate correctly, you should ensure that one of the following scenarios occurs:

• On the cc line the option -Kthread appears before any files to be compiled or linked. This option ensures that the preprocessor token _REENTRANT is defined before any source files are processed and that libthread is linked after and initialized before all of the libraries listed on the cc line.

• The application is linked with the Threads Library at link time but linked with the Networking Services Library at run-time (via dlopen).

• The application is linked first with the Threads Library and then with the Networking Services Library (via dlopen).