"warning: assignment makes pointer from integer without a cast"

Not really a bug, but seems disconcerting...

This is from compiling Koen's SAT solver front-end, available from
http://www.math.chalmers.se/~koen/paradox/paradox-1.0-casc.tar.gz

Using ghc 6.0.1, -O2

...
Compiling: Sat.hs
/tmp/ghc24790.hc: In function `Sat_identify_entry':
/tmp/ghc24790.hc:903: warning: assignment makes pointer from integer 
without a cast
/tmp/ghc24790.hc: In function `Sat_run_entry':
/tmp/ghc24790.hc:1463: warning: assignment makes pointer from integer 
without a cast
...
Compiling: Paradox.hs
/tmp/ghc24921.hc: In function `Main_main_entry':
/tmp/ghc24921.hc:1047: warning: assignment makes pointer from integer 
without a cast