[Haskell-cafe] Cabal: other-modules necessary?

[Volker Wysk]

Am Freitag, dem 16.09.2022 um 10:12 +0100 schrieb Oliver Charles:
> Hi Volker,
> 
> If you don't mention all modules in your Cabal file you may well get some
> very confusing linker errors later on when you build an executable, or try
> to use your library in another component. See
> https://stackoverflow.com/questions/28857275/cabal-test-fails-to-link-its-own-objects
>   for one such example of the very cryptic error you'll likely eventually
> run into!

It works now, without other-modules. I don't have a library in my package,
just executables.

But I guess you're right. I'll rather add all the modules to the cabal file.
It's just a little bothersome.

Volker

> 
> Ollie
> 
> On Fri, 16 Sep 2022, at 9:47 AM, Volker Wysk wrote:
> > Hi
> > 
> > The cabal user guide says (in section 6.2.12): "Every module in the
> > package
> > must be listed in one of other-modules, library:exposed-modules or
> > executable:main-is fields."
> > 
> > However, I only get a warning message, when I comment out the other-
> > modules
> > field in my .cabal file. The program compiles. This is the message:
> > 
> > <no location info>: warning: [-Wmissing-home-modules]
> >     These modules are needed for compilation but not listed in your
> > .cabal 
> >     file's other-modules: 
> >         Hsskripte Sicherung SicherungAktionen Text Wahl Zeit
> > 
> > Is it really necessary to specify all the imported modules? If so, why
> > does
> > the program compile? Can that warning message be turned off?
> > 
> > Apart from that, I'm happy with cabal.   :-)
> > 
> > Cheers,
> > Volker
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