> On Sep 30, 2014, at 12:49, Motti Shneor <su...@bezeqint.net> wrote:
> 
> Hello everyone. This seems to be an upside-down question, but bare with me...
> 
> Our Mac Client-side application can (sadly) only be built and run in 
> 32bit-only. Reason is: bit parts of it are legacy 32bit-only C++ code shared 
> with other platforms (Windows, Android, Linux, etc.) client code as well as 
> the Windows-only server. This code contains  networking-protocol code which 
> is 64bit unsafe, and so it can't really be replaced. 
> 
> Until All platforms and products move together to 64bit, we're bound to build 
> our app 32bit only.
> 
> Now I'm building a new module for this application as an external private 
> dynamic framework. I would like to use ARC, and the new niceties of modern 
> Obj-C runtime for the new framework, but these are only available in 
> 64bit-only builds.
> 
> So… Could my 32bit-only Mac Application depend-on, load, link, and use, a 
> 64bit-only framework?

No.

You basically have two options:

1) Build a helper app or tool that is 64-bit (and can therefore link 64-bit 
code) and call that too, from your 32-bit app
2) Move your 64-bit-unsafe code into a helper tool and make the rest of the app 
64-bit.

Both options rely on having two separate processes, one running 32-bit code and 
one running 64-bit code, and only differ in which you put in the main app and 
which you put in the helper.


-- 
Clark Smith Cox III
clarkc...@gmail.com


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