The MAXMSG option specifies the maximum number of messages with a given
severity (or higher) that the compilation should produce.

>>-MAXMSG--+-----------------------+---------------------------><
| .-+---+-------. |
| | '-,-' | |
| V .-W-. | |
'-(----+-+-I-+---+-+--)-'
| +-E-+ |
| '-S-' |
| .-250-. |
'-+-n---+-'
- I
- Count all messages.
- W
- Count all except information messages.
- E
- Count all except warning and information messages.
- S
- Count only severe error and unrecoverable error messages.
- n
- Terminate the compilation if the number of messages exceeds this value.
If messages are below the specified severity or are filtered out by a compiler
exit routine, they are not counted in the number. The value of n can
range from 0 to 32767. If you specify 0, the compilation terminates when the
first error of the specified severity is encountered.
DEFAULT: MAXMSG( W 250 )