Import module

[anonymous via Digitalmars-d-learn]

On Thursday, 9 July 2015 at 22:05:23 UTC, codenstuff wrote:
> I am trying to import module and compile.
>
> The compiler produces message
>
> map/map.d(9): Error: module game_object is in file 
> 'steering/game_object.d' which cannot be read
> import path[0] = /usr/include/dmd/phobos
> import path[1] = /usr/include/dmd/druntime/import
> make: *** [main] Error 1
>

This error message doesn't mention the import path you add below 
with "-I${HOME}/d_apps/steering". It should. Looks like you 
copied the output of a different command.

> How can I compile? Is it possible to modify import path?
>
> Modules are set up as
>
> ${HOME}/d_apps/steering (contains steering/game_object.d)

Is that
"${HOME}/d_apps/steering/steering/game_object.d" or is it
"${HOME}/d_apps/steering/game_object.d"?

> ${HOME}/d_apps/path_find (contains map/map.d)
>
> In map.d I import as
>
> import steering.game_object;
>
> The compile command
>
> dmd map/map.d main_visual.d -I${HOME}/d_apps/steering

If the file is "${HOME}/d_apps/steering/steering/game_object.d", 
then this import path should be ok.

If the file is "${HOME}/d_apps/steering/game_object.d", then that 
import is wrong, and you'd have to pass the import path as 
"-I${HOME}/d_apps" instead.

(Adam D. Ruppe already said the following, but maybe he wasn't 
verbose enough.)
Even when the import path is fixed, this can't compile because 
you're not passing game_object.d to the compiler. You have 
multiple options:
You can pass all source files to dmd. You don't need to tinker 
with the import paths then.
Or you can use rdmd instead of dmd (or rather on top of it). rdmd 
takes a single source file, discovers the imported modules, and 
passes everything to dmd. It needs proper import paths to work 
its magic, of course.