Linking a .h file

[infinityplusb]

I'm trying to use Dagon (https://github.com/gecko0307/dagon) for 
what I thought would be a simple enough project.
Initially the one thing I needed to do was to install Nuklear and 
Freetype 2.8.1 `Under other OSes you have to install them 
manually` as I'm running on Ubuntu.

I'm using dub and thought this would be a simple matter of adding 
some parameters to the .sdl file, however I'm finding it tricky 
figuring out what to add (or if I'm oversimplifying or 
overcomplicating things).

So I've found either a .h file here 
(https://github.com/vurtun/nuklear) or here has something I can 
compile to a .so file (https://github.com/Timu5/bindbc-nuklear).
However no matter where I put files or whatever dub.sdl 
parameters I use, I can't seem to get it to work.
My current sdl looks like:

name "test"
description "Test"
targetType "executable"
dependency "dagon" version="0.10.0"
libs "nuklear" platform="posix"
lflags "-L/usr/local/lib/"


My latest error is
```
error while loading shared libraries: libnuklear.so.4.0.2: cannot 
open shared object file: No such file or directory

```

If it's a simple dub config thing, can someone handhold me 
through what the best way to get this to work is? Otherwise which 
file (.h or .so) should I put where for it to get picked up?

TIA