Subject: Re: [boost] C++ announcements coming tomorrow
From: Olaf van der Spek (ml_at_[hidden])
Date: 2012-11-05 10:53:28
On Mon, Nov 5, 2012 at 3:46 PM, Paul Mensonides <pmenso57_at_[hidden]> wrote:
>> For an app it's easy to depend on another lib. But for a lib,
>> depending on another lib that might not be easily available /
>> installable can be problematic.
> In some ways, Windows deployment is easier because you can distribute
> in-directory DLLs for many libraries that don't require their own
> installation programs and largely avoid DLL hell. In many ways, the Linux
> model is better because it has better facilities for reuse, but dealing with
> C++ ABI issues and version availablity issues can be a nightmare also.
> Granted, you can do the same thing as with Windows with rpath if you really
> want to, but then you throw away memory and, usually less importantly, disk
> reuse (just as you get with Windows with in-directory DLLs).
Actually, I meant build-time deployment. Getting includes and libs installed.
>> They could be better but I don't think calling them fundamentally
>> broken is fair.
> Sorry, I didn't mean the tools themselves. I'm referring to the single
> points of update and/or vetting of the content that those tools work with
> (at least, via official repositories). They are fundamentally broken
> because all updates are essentially serialized through a single point. That
> just doesn't scale despite herculian effort, and most Linux distros are way
> behind the most current releases of most software because of that. Pressure
> for throughput at that point far outweights the available throughput--the
> outcome is inevitable. Currently, deploying on Linux via any of the package
> management systems is a nightmare unless you only need old compilers and
> only rely on old versions of other libraries. Besides the boilerplate
> distro differences in how one specifies a package, you run smack into
> version availability issues (related to which versions have so far gone
> through the single point) and ABI issues.
I guess my definition of broken is different than yours. Yes, the
model can be improved (greatly), but calling it broken?
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