dmd -c behaviour doesn't take account of packages.

[H. S. Teoh]

On Thu, Feb 23, 2012 at 01:42:44PM +0100, Jacob Carlborg wrote:
> On 2012-02-23 00:03, Jonathan M Davis wrote:
> >On Wednesday, February 22, 2012 23:50:53 Bernard Helyer wrote:
> >>Except DMD is faster by a factor of 10 when passing it all at once.
> >
> >Then maybe there _should_ be a flag to tell it to use/generate the
> >appropriate directory structure. You already typically give it an
> >output directory. It wouldn't be all that hard for it to then
> >generate and use the correct directories in that directory. That
> >still bugs me a little, because that's more of a build tool's job,
> >but it wouldn't be hard to do, would fix the file conflicts across
> >modules, and would let you keep that extra speed.
> >
> >- Jonathan M Davis
> 
> I don't see a point in putting the object files in different
> directories when the compiler can output the object files with fully
> qualified module names.
[...]

Because ambiguity can arise. Like

	my/module/A.d -> my_module_A.o
	my_module_A.d -> my_module_A.o (conflict)
	my_module/A.d -> my_module_A.o (conflict)
	my/module_A.d -> my_module_A.o (conflict)

Granted, this is a really contrived example, but unexpected coincidences
like that do happen.


T

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