building a D app with multiple source files

[nikki via Digitalmars-d-learn]

On Tuesday, 5 August 2014 at 07:57:57 UTC, Vladimir Panteleev 
wrote:
> On Tuesday, 5 August 2014 at 07:51:53 UTC, nikki wrote:
>>> Correction:
>>>
>>> rdmd -Isource example/source/app.d
>>
>> that one worked, woohoo thanks.
>>
>> what did the -Isource do? it's not in the 'rdmd --help'
>
> You'll find it in dmd's --help. It adds the "source" directory 
> to the search path, the list of directories where the compiler 
> looks for imported modules.

edit: couldn't find that flag in dmd --help (only -Ipath), 
atleast I know what it does now, hope I'll remember..
thanks a lot though @ great helpful community