NDK version compatibility for targets Android versions

[Aurélien ....]

Hello,

I make an app using the NDK 12 which worked on my phone (Android 21).

When I tried to compile it for an Android 19 device, I had some errors at the link time because some symbols like "atof" were missing.

The reason was that these symbols where not present on older versions of Android, so the NDK included them. But in newer versions of Android, these symbols are native so the NDK does not have to include them.

Consequently, using the NDK 12 for an Android 19 target did not work because either the NDK or Android defined these symbols.

Well, ok.

My question is : Is there is a compatibility table between the NDK versions to use depending the Android version targets ?

I mean if I want to compile my app for Android 13, which NDK have I to use ? And for 14, 15, 16 etc. ?

Thank you in advance :)

[mic _]

What did you set APP_PLATFORM to? See https://developer.android.com/ndk/guides/stable_apis.html and https://developer.android.com/ndk/guides/application_mk.html

/Michael

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[Dan Albert]

The NDK version and the Android version you are targeting are orthogonal concepts. You should always be using the latest NDK for the best behavior (possibly N-1 if there's a bug in the latest stable, but that won't be the average case).

It does sound like your APP_PLATFORM is set to a newer platform than the device you're trying to run on. APP_PLATFORM is a minimum supported version.

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[Wei Wang]

Hello Dan Albert 

I have a question ? 

our customer use ndk 13b (api24) to compile  .so and .a , 

Can I use them in the Android 8.0 ? because some reason , our customer can't update the NDK to high version .

BR

[Dan Albert]

Yes.

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[Wei Wang]

Dear Dan Albert 

     Excuse ,  I encounter one  question 

  

      I have a *.so  with  NDK - r10b  (GCC compiler)  compiling   , now  I use the .so  on the Android N , but the Android N is  Clang compiler , 

      

      I think there may be some problem on this situation 

[Dan Albert]

It's not something we test but it shouldn't be a problem.

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[terry....@gmail.com]

Dear Dan Albert

    I am  Wei Wang's colleague, another 

    Now  our customer use ndk 13b (api24) to compile  .so and .a ,  they want use the .so and  .a in the Android P ?  Do they can work normal in Android P  ?  

 

    Why do I encounter the problem ,     because some reason , our customer don't want to compile the so/.a in new tool-chain ~

在 2018年4月13日星期五 UTC+8上午12:20:46，Dan Albert写道：

[Ren Terry]

Dear Dan Albert

    I have a question to consult you .

    Now  our customer use ndk 13b (api24) to compile  .so and .a ,  they want use the .so and  .a in the Android P ?  Do they can work normal in Android P  ?  

    Why do I encounter the problem ,     because some reason , our customer don't want to compile the so/.a in new tool-chain ~

    I see the some replay before  the the ndk 13b(api24) .so/.a can use in Android O(8.x) ~

在 2018年4月13日星期五 UTC+8上午12:20:46，Dan Albert写道：

Yes.

[Dan Albert]

Yes. All NDKs should be compatible with all platform versions except in very rare circumstances.

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