[GHC] #843: Dependency information for the linking step

[Volker Wysk]

On Tuesday 08 August 2006 14:08, GHC wrote:
> #843: Dependency information for the linking step
> ------------------------------------+--------------------------------------
>- Reporter:  pf1 at volker-wysk.de     |          Owner:
>       Type:  feature request        |         Status:  new
>   Priority:  normal                 |      Milestone:
>  Component:  Compiler               |        Version:  6.4.1
>   Severity:  normal                 |     Resolution:
>   Keywords:  dependency generation  |             Os:  Linux
> Difficulty:  Easy (1 hr)            |   Architecture:  Unknown
> ------------------------------------+--------------------------------------
>- Comment (by simonmar):
>
>  Then I have another trick for you:
>
>  {{{
>  ghc --make -pgml echo Main.hs -v0 | ghc -e 'interact (unwords . filter
>  (".o" `Data.List.isSuffixOf`) . words)'
>  }}}
>
>  Does this solve the problem?

Yes! I have no idea what's going on, though.

However, it triggers another problem, which I haven't reported. When 
calling "ghc -M src/prog.hs", where "prog.hs" is the main module, then the 
name of the object file is reported as "src/prog.o". When calling it in 
conjunction with "-odir", such as "ghc -M -odir build src/prog.hs", then you 
get "build/Main.o". Of course this can't be used, because all of the 
programs' main modules become "build/Main.o".

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