Constants and IF?

["Goodbar, Loyd (AFS-Water Valley)" <LGoodbar@xxxxxxxxxxxxxx>]

I encountered a wierd problem that's been bugging me all afternoon:

I have the following in an RPG 4 program (V3R7):

d sbsqbatch c const('QBATCH    ')
d sbsqinter c const('QINTER    ')
d sbsqpgmr c const('QPGMR     ')
d jdata ds
d  sbsname 2 11       Subsystem name
d  jobname 4 13       Job name
...
c if sbsname = sbsqbatch
<process qbatch>
c endif
...
c if sbsname = sbsqinter
<process qinter>
c endif
...

This works fine. But I get errors if I use the following in the calcs:
c if (sbsname = sbsqbatch) or +
c   (sbsname = sbsqinter) or +
c   (sbsname = sbsqpgmr)
<process subsystems>
c endif

The compiler gives me this error for each of the lines in that if
statement: *RNF7421 (severity 30) Operands are not compatible with the
type of operator.

This doesn't make sense; I'm just using a combined if rather than
seperate IFs. Any suggestions??

Thanks,
Loyd Goodbar
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