Problems with -caf-all

I get the following error message when I try to compile with -caf-all. /tmp/ghc583_0/ghc583_0.s:6482:0: FATAL:Symbol _Mainmain_CAF_cc_ccs already defined. My command line looks like this: ghc --make PriceHisto.hs -ljudy -prof -auto-all -caf-all I also tried the following command line and got the same error: ghc --make PriceHisto.hs -ljudy -prof -caf-all Any ideas as to what I'm doing wrong? R Hayes rfhayes<>@reillyhayes.com