http://hackage.haskell.org/trac/ghc/ticket/106
It got changed to Won't Fix. Consider this a yell!
On 31/05/07, Simon Peyton-Jones
| Incidentally, when I try to recompile with optimizations turned on, GHC | refuses to work: | | $ ghc htrace.hs -o htrace | $ ghc -O2 htrace.hs -o htrace | compilation IS NOT required
Yes, I think it's a bug. GHC should really compare the flags used last time with the flags used this time, and recompile if they have changed. If enough people yell about it, we'll probably fix it! Meanwhile opening a Trac bug report (or perhpas feature request) would be a good start.
Simon
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