Informix Error -33038: This statement does not conform to the X/Open standard.

Reasons / Common Causes

-33038 is a preprocessor warning — per the official guidance, it fires when the -xopen compliance-check option is used and the source statement doesn't conform to the XPG4 X/Open standard.

1. The -xopen option used with source code not conforming to XPG4, per the official guidance — the direct, only cause.

Solutions / Resolution

1. No action needed if the non-conformance is intentional, per the official guidance — this is a compliance warning, not an error requiring a fix.
2. Rewrite the statement for XPG4 compliance if strict conformance is required, per the official guidance's implication.

Examples

N/A

No specific triggering statement is documented beyond XPG4 non-conformance flagged under -xopen.

Diagnostic Checks

1. Check whether strict XPG4 X/Open compliance is actually required, and rewrite the flagged statement if so.

Related Errors / Related Topics

• -33033 — "The field field-name is an Informix extension to XPG3 X/Open standard." A related standards-compliance warning, for XPG3 field extensions specifically.
• -33036 — "This line does not conform to ANSI X3.135-1989." A related standards-compliance warning, for the -ansi option rather than -xopen.

A statement didn't conform to the XPG4 X/Open standard under -xopen checking — a warning only, no action needed unless strict compliance is required.