i warmly recommend you use cabal for any complicated build processes. if you're stuck, holler and we or haskell-cafe are happy to help On Mon, Jan 13, 2014 at 1:22 PM, 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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I'd like to repeat the suggestion to use cabal. It's very well suited for simple programs. In addition, you get the ability to specify dependencies, you can upload to hackage, etc. Erik On Mon, Jan 13, 2014 at 11:10 PM, Christian Brolin wrote:

Thanks, but it is not a complicated build process. Just a few simple programs that share some modules. I like to keep it simple.

On 2014-01-13 19:28, Carter Schonwald wrote:

i warmly recommend you use cabal for any complicated build processes. if you're stuck, holler and we or haskell-cafe are happy to help

On Mon, Jan 13, 2014 at 1:22 PM, 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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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.

_______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

_______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

_______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users