Re: gmake help with removing duplicate files

[Ralf Wildenhues]

* Jonathan wrote on Wed, Feb 20, 2008 at 07:25:12PM CET:
> 
> > > I have an interesting filter problem (I think).  I would like to
> > > remove duplicate filenames
> >
> > Why would you need that?
> 
> The short answer is the final list is for a linker and the linker
> complains of multiply defined symbols.  The long answer is that final
> list is constructed from a small set of local objects and a very large
> set of remote objects to allow a user to link an application without
> recompile of the entire project (or even ownership of the entire pr

I think you want to use an archive (a static library) for your "remote
objects".

> > With GNU make, use $(sort $(LIST1) $(LIST2)).
> 
> This will return:
> 
> file1.o file2.o file3.o path/file3.o path/file4.o path/file5.o
> 
> which has the duplicates file3.o and path/file3.o.  The sort function
> uses the entire filepath/name string rather than just the filename.

I'm sure GNU make's functions can be hacked to provide this, but I don't
think it's worth it, see above.

Cheers,
Ralf