Problem with the object file name of the Main module.

[Christian Brolin]

Thanks.

Strange feature!

Yes, I'm using -outputdir. It seems the -main-is MyProg is the best work 
around for me. But for it to work I also have to declare that MyProg is 
the name of the main module in the source (of course) which I otherwise 
don't have to. I also like to name my main modules with initial 
lowercase (myProg.hs) to get Unix sounded executables so my makefile has 
to adjust for this too.


On 2014-01-13 21:18, Thomas Hallgren wrote:
> The main module doesn't have to be called Main. You can specify a different name
> with the -main-is option. That seems like the easiest way to avoid the object
> file name clash.
>
> By the way, this problem only seems to arise when the -odir flag is used. If my
> Main module is in A.hs and I compile it with "ghc --make A.hs", I get "A.o",
> "A.hi" and an executable file "A". (Tested with GHC 7.6.3.)
>
> Thomas H
>
> On 2014-01-13 19:22, Christian Brolin wrote:
>> No. As a workaround I remove the Main.o file after the executable has been
>> linked. It works, but it has its drawbacks.
>>
>> On 2014-01-12 17:23, Carter Schonwald wrote:
>>> Christian, have you tried using cabal? People write cabal files with multiple
>>> executables being generated all the time.
>>>
>>> On Sunday, January 12, 2014, Christian Brolin wrote:
>>>
>>>      H.
>>>
>>>      The documentation (version 7.6.3) section 7.7.2 Output files says that the
>>>      source file name of the Main module does not have to be Main.hs making it
>>>      "possible to have several Main modules in separate source files in the
>>>      same directory". While this is true and promising it is seems to be
>>>      unusable since GHC always compiles the main source file into an object
>>>      file called Main.o.
>>>
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>>
>>
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