[Interest] Building 32-bit Qt 5 on Mac

[Nikos Chantziaras]

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?