Why is "phobos" hardcoded in DMD

[BCS]

Reply to Serg,

> Derek Parnell wrote:
> 
>> Hi Walter,
>> what is the rationale for having "phobos" hardcoded in DMD?
>> Would there be much work to free this up to make it a configuration
>> item instead?
>> 
> This is exactly question I ask when read an install note on Ares at a
> time. People are hesitant to even try Tango because of it.
> 
> I think there should be a compiler switch for not to link against
> Phobos implicitly.
> 

How about put that setting in the dmd.conf file and put sections in it so 
that one lib or another can be picked just by changing a command line switch.