Re: How to get warnings for missing methods in older SDKs
Re: How to get warnings for missing methods in older SDKs
- Subject: Re: How to get warnings for missing methods in older SDKs
- From: "B.J. Buchalter" <email@hidden>
- Date: Fri, 25 Mar 2011 17:32:36 -0400
On Mar 25, 2011, at 4:59 PM, Chris Hanson wrote:
> On Mar 25, 2011, at 1:47 PM, B.J. Buchalter wrote:
>
>> On Mar 25, 2011, at 3:34 PM, Chris Hanson wrote:
>>
>>> You can target Mac OS X 10.5 using the Mac OS X 10.6 SDK and a Mac OS X Deployment Target of 10.5.
>>
>> Unfortunately, that does not work for those of us who need to develop IOKit drivers; you need to use the SDK for the oldest OS you need to support for binary compatibility.
>
> Is this something you’ve seen documented somewhere, or were told?
I don't remember; it might have been something I was told when I ran into binary compatibility issues in the past. I know that you must use the 10.4u SDK and the proper compiler for 10.4 support and especially 10.4 on PPC support.
> So far as I understand, you should be able to use the Mac OS X 10.6 SDK to target Mac OS X 10.5 even for IOKit drivers, so long as you don’t use any 10.6 functionality in a 10.5 code path.
As far as I know that is not correct; but I could be confused. I am pretty sure that I tried to build our driver with the 10.6 SDK first and it will not load on 10.5 (and definitely will not load on 10.4).
Remember, there is no weak-linking in the kernel...
Maybe things have changed with the 10.6SDK in Xcode 4...
Best regards,
B.J. Buchalter
Metric Halo
http://www.mhlabs.com
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Xcode-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden