xcode 6.3 does not show all options for base sdks - xcode

I am new to OS X development. Using Xcode 6.3 on yosemite. Why the base sdks option in build settings only showing 10.10 and 10.9
Is it not possible to add other sdks under this option ? if it is then how can I do it ?
I understand that to support old platforms I need to set target sdk to lowest supported platform.
What I am trying to do here is to compile my code against an older sdk to ensure that my project is not calling any functions not available in old sdk.
Thanks,
Ahmed

Related

How to choose Xcode version, SDK and toolchain to develop for Mac OS X?

Recently I installed mac OS Mojave. Now I starts my way with Xcode. So I have an application for which I use Qt5.5.1, this version was build with deployment 10.7 and sdk 10.10. Also I have another Objective-C application which was build with deployment 10.7 and sdk 10.11. I need to build both apps for minimum Mac OS X 10.7 version with any later versions supported. It is situation. Now questions:
There is a any difference which Xcode use to build?
Which version Xcode is optimal as IDE? AppStore has very negative rating for latest.
There is a any difference which toolchain use? Or I always should use one provided with Xcode?
Should I use the same SDK as SDK used in base library? Or it is free to use latest?
It is ok to use foreign SDK not provided with installed Xcode version?
Now I can build the both applications with latest Xcode and SDK 10.11. Seems no any problem. But I want to be sure that will no any problems to run and use on 10.7. And want to know correct way to decide which Xcode/SDK and when should to use?
P.S. Applications for PC only, no need any iOS support.
You should use the most recent version of Xcode that will run on your Mac and the SDK that ships with that version. Currently the most recent version of Xcode is 10.1, which ships with the macOS 10.14 SDK. By using the 10.14 SDK your app can take advantage of the features introduced in macOS 10.14, such as dark mode. If you build your app with the 10.11 SDK, your app won't be able to take advantage of anything Apple added in 10.12, 10.13, and 10.14. For one thing your app won't look good in dark mode on 10.14.
To support 10.7 in your app, you must set the deployment target for your project to 10.7. The deployment target is the earliest OS version your app supports. You also have to make sure your app doesn't use any technologies or call any functions that were added after 10.7. That means no storyboards, no Swift, and no base internationalization for localizing your app to other spoken languages. Making sure your app uses only things that are available in macOS 10.7 is not easy. That is why many apps support only the most recent version of macOS and 1-2 previous versions.

Is it possible to develop for 10.7 and 10.8 using xcode 6?

I am developing OS X app which has GUI as well so designer will be used as well. The app in addition to latest OS X versions must support older platforms such as 10.8 and 10.7 Does xcode 6 support this out of the box if not, what are the steps involved to achieve it ?
Thanks,
Ahmed
I use Xcode 6 to develop an app that targets 10.7 with no problem.
The Deployment Target dropdown lets you select all the way down to 10.4.
In the build settings, set the deployment version (not the SDK version) to 10.7.

XCode5 says missing SDK 10.7, but I only refer to 10.8

I just installed OS X 10.8 and XCode 5 and I am trying to build a project. I changed the base SDK and Deployment target both to 10.8 and I get this error.
I can't find any reference to 10.7 in my settings, any ideas?
Xcode typically only ships with one SDK for each platform (e.g. Xcode 5 supports iOS 7 & MacOS 10.9 SDK; and at this precise moment it also has MacOS 10.8's SDK built in but probably not for much longer), so in my own settings I typically refer to "Latest SDK" (whichever is shipping with the installed version of Xcode).
And then you can reset "minimum deployment version" in your project settings to be the actual minimum MacOS version (10.5, 10.6, 10.7) you want to run on.
Now, if you do NOT see references to "10.7" in your settings, you may need to actually look at the raw XML of your "project.pbxproj" which resides within your Xcode project. You can look at it in a text editor and see if it's referring to 10.7 anywhere unexpected within it.

Can you build 10.7 applications with xcode 3?

Can you build Mac SDK 10.7 applications without having Mac SDK 10.7? Such as with an old Xcode?
Or do you need a new one? And what's the earliest 10.7 SDK was included in Xcode?
You can build applications that run on 10.7, but in order to use 10.7 specific API calls you need to build with Xcode on 10.7 or later.
The earliest Xcode that included the 10.7 SDK was Xcode 4.2 for Lion. Note that the Snow Leopard version of Xcode 4.2 does not include the 10.7 SDK.
You can Drag and Drop older SDKs into newer versions of Xcode and usually get them to work, you can't go the other way.
No you can't. In order to build apps for 10.7 you need the 10.7 library, which is only available in Xcode 4

How to add a "Base SDK" in XCode 4?

I currently use XCode 4.0 with Base SDK 4.3.
I would like to compile my app with an older SDK, for example 4.2, but I don't have this possibility as I have no other choice than SDK 4.3.
Do you know how to add older SDKs than the default Base SDK 4.3 proposed ?
Thanks a lot !
You cannot do that. Xcode versions are released along with iOS SDK's. They are linked together i.e particular Xcode version can compile the code on the specific iOS SDK only (which it come with by default).
To compile your code in lower version of SDK, you need to download the lower version of Xcode
by changing the iosdeployment target you can run this.
for this,
go to the targets in the xcode and get the info .There you can find the second tab build.in that you have search field.type the ios deployment target.change that to 4.2.So that it can run on 4.2 also
In build settings, under Architechtures, you have something called as Base SDK .. you can change you base SDK there and set it to the latest ios version you have installed.

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