[Interest] Building 32-bit Qt 5 on Mac

[Stephen Chu]

On 4/23/12 4:32 PM, Nikos Chantziaras wrote:
> On 23/04/12 23:19, Paul Miller wrote:
>> On 4/23/2012 1:19 PM, Stephen Chu wrote:
>>> Will 32-bit build be supported in Qt 5? Or we Mac guys will all have to
>>> force our users to 64-bit land?
>>
>> I don't know how far back you need to support, but we dropped support
>> for 32 bit Mac last year. Pretty much every Mac built in the last 5
>> years has bee on a 64 bit architecture, and Leopard up has been fully 64
>> bit. We make imaging products and nobody has ever complained about lack
>> of 32 bit. Pretty much everyone in the industry is running Snow Leopard
>> or Lion these days.
>
> Are there 32bit-only 10.5 systems?  Can it even be installed on a Mac
> that lacks a 64bit CPU?
>
> It's a bit difficult to find accurate information.  I ask because Qt
> supports down to OS X 10.5.  10.4 is not supported (at least not with
> Cocoa, and Carbon was deprecated by Qt I think).  If 10.5 can't be
> installed on 32bit Macs, then it makes sense to build for 64bit.
>
> The same goes for the PowerPC 10.5 Macs though.  Can 10.5 be installed
> on 32bit-only PPCs?
>

I am not worried about PPC at all. But 10.5 can be installed on 32-bit 
PPC. And both 10.5 and 10.6 can be installed on 32-bit only Intel Macs.