In order to use a third-party sort module with the ACUCOBOL-GT Runtime, you must relink the runtime using the following steps:
After creating the new runtime, which includes the third-party sort module, set the USE_EXTSM configuration variable to 1 and then run programs as usual. For more information, refer to Appendix H, Configuration Variables.
You can then run programs with SORT and MERGE verbs run as they normally would. See Procedure Division Statements in the ACUCOBOL-GT Reference Manual for more information.