Wireshark-dev: Re: [Wireshark-dev] Having the buildbot build Wireshark 64-bit for Mac OS X (was
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From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Wed, 28 Apr 2010 17:52:00 -0700
On Apr 28, 2010, at 3:10 PM, Michael Tüxen wrote:

> OK. I'll get an additional system which can act as a 64-bit Snow Leopard builder.
> This way we have a 32-bit Leopard builder and a 64-bit SnowLeopard
> one.

So what builds would we offer OS X users as downloads?

A 64-bit-only Snow Leopard build wouldn't work on Intel Core Duo or Intel Core Solo machines that have been updated to Snow Leopard (no Core Duo or Core Solo machines *shipped* with Snow Leopard), so anybody running Snow Leopard on one of those machines would presumably have to install the 32-bit Leopard build.

It probably also wouldn't work on a Leopard machine, for a variety of reasons (requiring newer versions of system libraries than are on Leopard, 64-bit BPF possibly being broken even worse than on Snow Leopard).

Safari's User-Agent string doesn't appear to include any 32-bit vs. 64-bit indication; however, it does include an OS version indication:

	User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

so we could

	offer nothing to Mac OS X 10_[0-4]*;

	offer the (32-bit) PPC Leopard version to {whatever} Mac OS X 10_5*;

	offer the 32-bit Intel Leopard version to Intel Mac OS X 10_5*;

	offer the 64-bit Intel Snow Leopard version to Intel Mac OS X 10_[6-9]*, perhaps with a warning that if you have a non-64-bit-capable machine you should get the Leopard version instead.

We could also limit the 10_5* and 10_6* versions to releases >= the version running on the relevant buildbot (as earlier versions run into shared library version problems).