Defines the environment for using the OpenTP1 client function.

As a general rule, enter these definition commands in /etc/profile or $HOME/.profile for sh (Bourne shell), or in /etc/cshrc or $HOME/.cshrc for csh (C shell).

In a multi-thread environment, you can create your own client environment definition file that contains definitions in the TP1/Client/P format. To use your own client environment definition file, specify the absolute pathname of it in the defpath argument of the dc_clt_cltin_s function. If you want to use a different client environment definition for each thread, issue the dc_clt_cltin_s function, specifying the pathname of the desired file in the defpath argument for each thread.