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Re: How specify dependences on URL

From: Allan Odgaard
Subject: Re: How specify dependences on URL
Date: Fri, 4 Dec 2009 15:37:45 +0100

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.

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