Re: How specify dependences on URL

[Peng Yu]

On Fri, Dec 4, 2009 at 8:37 AM, Allan Odgaard
<address@hidden> wrote:
> On 4 Dec 2009, at 14:19, Peng Yu wrote:
>
>> Suppose I want to download the file http://some_website/some_file
>> whenever it is newer than the local file. This needs the specification
>> of the dependency on URLs. I'm wondering if it is possible to do so in
>> gnu make.
>
> URLs don’t have dates. A GET/HEAD request may return a ‘Last-Modified’
> header and you can do conditional requests using that or the entity tag, but
> these things are beyond make.

Some programs (e.g. rsync) support various network protocols. It would
be nice that gnu make also support these protocols. Will this
functionality be considered to be added in gnu make in the future?