Causes the Compiler to flag any syntax that behaves differently at run time depending on the setting of CMPR2.
>>-.---.-.----.--FLAGMIG----------------------><
+-/-+ +-NO-+
None
| Default: | NOFLAGMIG |
| Phase: | Syntax check |
| $SET: | Any |
Such syntax receives W-level messages, with the additional text "MIGR" appearing in the message line to indicate that the warning results from specifying the FLAGMIG directive.