[Interest] Do I need to build Qt from the source to have an app compile in 32 bit?

[Nikos Chantziaras]

On 14/03/15 09:47, René J.V. Bertin wrote:
> What you do need though is the OS X 10.6 SDK, and I'm not sure if
> systems more recent than OS X 10.7 can be used to build applications
> targeting 10.6.

The SDKs are backwards compatible. Building against newer SDKs doesn't 
mean the program won't run on older versions. I'm building against the 
10.9 SDK for example and the resulting binaries fully support OS X 10.7. 
It is not necessary (nor advised) to build against an older SDK.