Compiler Return Codes

At the end of compilation, the compiler sets the return code to zero under any of the following conditions:

No messages are issued.
The highest severity level of all errors diagnosed is less than the setting of the halt compiler option, and the number of errors did not reach the limit set by the maxerr compiler option. The default for -qhalt is S.
No message specifid by the haltonmsg compiler option is issued.

Otherwise, the compiler sets the return code to one of the following values:

Return Code	Error Type
1	Any error with a severity level higher than the setting of the halt compiler option has been detected.
40	An option error or an unrecoverable error has been detected.
41	A configuration file error has been detected.
250	An out-of-memory error has been detected. The xlC command cannot allocate any more memory for its use.
251	A signal-received error has been detected. That is, an unrecoverable error or interrupt signal has occurred.
252	A file-not-found error has been detected.
253	An input/output error has been detected: files cannot be read or written to.
254	A fork error has been detected. A new process cannot be created.
255	An error has been detected while the process was running.