OK so I'm getting the hang of this now.
What I don't understand is when installing Tango I see a line to backup "object.d" -Why?

What exactly is meant by backup ?  I copied the file and renamed it to "objectCopy.d" -so what do I do with it ?

Doesn't Tango come with an "object.d" file? That would seem stupid as it is the base class for all objects.

So when trying to compile under Tango if I don't put "object.d" in the current directory the compiler complains that it can't find it .

What a mess this Tango Phobos thing is!

Ty Tower wrote:

> OK so I'm getting the hang of this now.
> What I don't understand is when installing Tango I see a line to backup
> "object.d" -Why?

Because Phobos' and Tango's object.d are different.

> 
> What exactly is meant by backup ?  I copied the file and renamed it to "objectCopy.d" -so what do I do with it ?

You copy it back if you go back to Phobos.

> Doesn't Tango come with an "object.d" file? That would seem stupid as it is the base class for all objects.

Indeed. Although note that it is called object.di in Tango.

-- 
Lars Ivar Igesund
blog at http://larsivi.net
DSource, #d.tango & #D: larsivi
Dancing the Tango

Thanks Lars
Now Ok " object.di" is an interface file so it loads a lesser part of "object.d". Not all of "object.d"

So I am experimenting with "dwt" which I have in  directory " dwt-linux-tango"
Trying to compile that I get an error :-
[tytower@linuxbox TangoExamples]$ dmd dwt-linux-tango/layout/GridLayout.d
object.d: module object cannot read file 'object.d'

So this is a tango compatible file why is it looking for "object.d"  ?

Ty Tower wrote:
> Thanks Lars
> Now Ok " object.di" is an interface file so it loads a lesser part of "object.d". Not all of "object.d"
> 
> So I am experimenting with "dwt" which I have in  directory " dwt-linux-tango"  Trying to compile that I get an error :-
> [tytower@linuxbox TangoExamples]$ dmd dwt-linux-tango/layout/GridLayout.d
> object.d: module object cannot read file 'object.d'
> 
> So this is a tango compatible file why is it looking for "object.d"  ?

The D compiler will report that, but is actually looking for a module "object". It will look for ".di" file first, then a ".d" file.

Ty Tower wrote:

> Thanks Lars
> Now Ok " object.di" is an interface file so it loads a lesser part of
> "object.d". Not all of "object.d"

This is not a problem, as the implementation is in the runtime and will be
linked in when you link the application. It is no different with Phobos,
except that it doesn't use the .di extension.

> So I am experimenting with "dwt" which I have in  directory " dwt-linux-tango" Trying to compile that I get an error :- [tytower@linuxbox TangoExamples]$ dmd dwt-linux-tango/layout/GridLayout.d object.d: module object cannot read file 'object.d'

This means that object.[d,di] isn't installed where the compiler expects it, or the compiler isn't told where it is (the -I switch). It will probably be useful to read Tango's install instructions.

http://www.dsource.org/projects/tango/wiki/TopicInstallTango

-- 
Lars Ivar Igesund
blog at http://larsivi.net
DSource, #d.tango & #D: larsivi
Dancing the Tango