[fpc-pascal] uses in '' relative paths

[Ryan Joseph]

> On Oct 7, 2020, at 11:15 AM, Ryan Joseph <genericptr at gmail.com> wrote:
> 
> Some interesting stuff here, thanks. Almost there but for some reason Scanner.pas is not found even though it's in the same directory as TOMLParser.pas. The compiler did find TOMLParser despite /sources not being explicitly included as -Fu option.
> 
> 
> unit TOMLParser;
> interface
> uses
>  Classes, 
>  Scanner,    // error: Can't find unit Scanner used by TOMLParser
>  TOMLTypes;

what does {$unitpath sources} do exactly in the file below? I assumed it added /sources to the directory the current file is in and then added that to the unit path like -Fu. If I omit the "in" part it still finds the units in /sources BUT then units in /sources can't find out units in /sources. For example TOMLParser can't find TOMLTypes even though they're in the same directory.

{$mode objfpc}
{$unitpath sources}

unit TOML;
interface
uses
  TOMLParser,
  TOMLTypes;


Regards,
	Ryan Joseph