extra_ghc_opts

[S.D.Mechveliani]

To my 

>> The lack of  extra_command_line_opts  is not important,
>> but I wonder, why make things worse?
>> [..]
>> I thought the idea of  -package  was to collect in one place all
>> the project-specific settings. For example, for my project  docon,
>> I need
>>        doconOpts = -fglasgow-exts -fallow-this-and-this ...


Simon Marlow <simonmar@microsoft.com> writes

> I'm in two minds about this.  At the moment, using a -package option
> does two well defined things:
>
>  - it brings a set of modules into scope
>  - it links in the object code for those modules
>
> According to the Principle of Least Astonishment, we should force the
> user to add any extra options himself, because if '-package wibble'
> automatically adds a number of language-feature options then it's just
> too magical and non-obvious. 
>
> On the other hand, I presume you *need* these options in order to be
> able to use Docon, so adding them automatically would seem reasonable.
>
> Opinions, anyone?


To add or not to add automatically the language-feature options,
or many other options, this is up to the designer of the package.
The designer is always free to set  []  in the package.
And you were going to desable this choice (concerning package).

-----------------
Serge Mechveliani
mechvel@botik.ru