Passing directory as compiler argument not finding file

[Nicholas Wilson]

On Thursday, 12 April 2018 at 07:48:28 UTC, Jamie wrote:
> On Thursday, 12 April 2018 at 06:30:25 UTC, Tony wrote:
>> On Thursday, 12 April 2018 at 05:39:21 UTC, Jamie wrote:
>>
>>> Am I using the -I compiler option incorrectly?
>>
>> I believe so. I think it is for finding import files, not the 
>> files you are compiling.
>>
>> ---------------------------------------------------------
>> -I=directory
>>      Look for imports also in directory
>
> Ahh yes I think you are correct. It sounds silly that I was 
> compiling from a different spot to my file, but it was to 
> demonstrate my situation. Really, it's more like:
>
> A/
>  a.d
>     module A.a;
>     import std.stdio;
>     import B.b;
>     void main()
>     {
>         writeln(f(4));
>     }
> B/
>  b.d
>     module B.b;
>     size_t f(size_t input)
>     {
>         return input * 2;
>     }
>
> And in A/ I'm compiling
>     dmd -ofoutput a.d ../B/b.d
>
> and instead I was thinking I could compile with
>     dmd -ofoutput a.d -I../B b.d
>
> and would get the same result. The former works, the latter 
> does not. Is there something like this that I can use or do I 
> have to pass all the files with the direct path to them? Thanks

rdmd. from the directory above A and B:

$ rdmd -ofoutput A/a.d