Informix Error -1338: The function name has not been defined in any module in the program.

Reasons / Common Causes

-1338 fires when a function is called from at least one module but isn't defined in any module of the program — per the official guidance, this typically happens one of two ways: in the Programmer's Environment, a module wasn't included as part of a multimodule program configuration; from the command line, one or more compiled .4go modules were omitted when concatenating files into the .4gi.

1. A module missing from the multimodule program configuration, per the official guidance — specific to building via the Programmer's Environment.
2. A .4go module omitted when concatenating files to build the .4gi, per the official guidance — specific to building from the command line.

Solutions / Resolution

1. Ensure all necessary modules containing function definitions are properly included in the program build, per the official guidance — check the multimodule configuration (Programmer's Environment) or the command-line concatenation list (.4go files) as appropriate.

Examples

A missing module in the command-line build

$ fglgo main.4go module_a.4go -o program.4gi
-- -1338: module_b.4go, which defines the called function, was omitted

Corrected

$ fglgo main.4go module_a.4go module_b.4go -o program.4gi

Diagnostic Checks

1. Identify which module is supposed to define the missing function, and confirm it's actually included in the build (Programmer's Environment configuration or command-line .4go list).

Related Errors / Related Topics

• -1318 — "A parameter count mismatch has occurred between the calling function and the called function." A related function-call error, about signature mismatch rather than a missing definition entirely.

A called function isn't defined in any included module — check the multimodule build configuration.