This fixes most - not all - of the warnings produced by ZILF 0.9. I think this is a good idea, because otherwise warnings and errors tend to get lost in the noise.
The remaining warnings are:
[warning ZIL0504] parser.zil:238: treating SET to 0 as true here
[warning ZIL0502] verbs.zil:146: RETURN value ignored: PROG/REPEAT block is in void context
[warning ZIL0308] <top level>: too many parts of speech for 'UPSTAIRS': Adjective (dungeon.zil:664), Direction (dungeon.zil:8), Preposition (syntax.zil:123)
[warning ZIL0306] dungeon.zil:664: discarding the Adjective part of speech for 'UPSTAIRS'
This fixes most - not all - of the warnings produced by ZILF 0.9. I think this is a good idea, because otherwise warnings and errors tend to get lost in the noise.
The remaining warnings are: