how to make pragma(lib)'s path relative to the package's path?

[ryuukk_]

example:


I have 2 projects:


- ``lib_a/``: depends on ``bin/lib.a`` static library

- ``app/``: imports ``lib_a``


Folder structure:


```
..
├── app
│   ├── main.d
│   └── main.o
└── libs
     └── lib_a
         ├── bin
         │   └── lib.a
         └── package.d
```

``lib_a``'s prama(lib) path for the ``lib.a`` file looks like 
this: ``pragma(lib, "bin/lib.a");``


If i compile my ``app/``, it complains:
``
ryuukk at ark:~/dev/dbug/app
$ dmd -i -I../libs/ -run main.d
/usr/bin/ld: cannot find bin/lib.a: No such file or directory
``

If i change the pragma path to: ``pragma(lib, 
"../libs/lib_a/bin/lib.a");``

Then it works..

So the problem is DMD searchs for the library with the path 
related to the path of ``app/``, instead of ``lib_a``


Question: how to i make it so DMD search for ``lib.a`` relative 
to ``lib_a/`` project?

An anotated screenshot to better view the problem:

![screenshot](https://www.oetec.com/pastebin/plain/bF9P64bJ)