[Haskell-cafe] Why does ghci recompile the module compiled in different OS ?

[zaxis]

Both linux and freebsd has the same .ghci file.
>cat ~/.ghci
:def hoogle \str -> return $ ":! hoogle --count=15 \"" ++ str ++ "\""
:cd /media/G/www/qachina/db/doc/money

the money.hs has many functions i need to use.   

On freebsd, i use the following command to compile it:
>ghc -c -O2 money.hs
>ls 
Money.hi  Money.hs  Money.o 

When entering ghci, it indeed doesnot recompile the module.
>ghci
...
Ok, modules loaded: Money

However, when i use the same module in archlinux, the ghci does recompile
the module:
>ghci
...
[1 of 1] Compiling Money            ( Money.hs, interpreted )
Ok, modules loaded: Money.

Any suggestion is appreciated!

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