The II_API_SET environment variable allows GCA_TRACE messages to be written to a file.

Set II_API_SET to PRINTTRACE to write GCA_TRACE messages to default output file iiprttrc.c. To direct output to a different file, add the TRACEFILE option followed by the file name.

For example, on UNIX, to enable OpenAPI tracing of GCA_TRACE messages to output file tracing.log: