configuring for building on IRIX53?

Apologies if this is the wrong address for such information, but....

I've been trying for several days to get MH to build on my IRIX53 machine,
and I've yet to find a combination of 'options' which will enable it to build
(I'm not talking about things like POP and MMDF options - but things like
SVR4, BSD42, etc.)

Has anyone successfully build MH (6.8.3) on an IRIX53 machine?  If so - would
it be possible for you to send me your conf/MH file?

Thanks in advance for any help, apologies again if I used an incorrect forum.

--fish