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Attempt to run nimrod on the android platform
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This should now work with the latest Nimrod compiler as of now. Updat…

…ed the readme with my own build instructions.
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Nimrod on Android

Author: Grzegorz Adam Hankiewicz <> & Dominik Picheta <


1   General

This project may be compiles using the Nimrod compiler which can be found on or at This example is a tweak of @gradha's work. I am still puzzled as to why his original example did not work, the advice given on the forum ( is correct and it pretty much worked out of the box for me. The only reason I changed the C & Nimrod code is because I wanted to see the output of that myAdd function, and I did not feel like figuring out how to concatenate a string and a long or even how to output that long so I just did it all in Nimrod.

I have included the ant build.xml to make getting this to work easier, i'm not sure why the original did not include this. The steps to get this to work are as follows:

1. Download and install the ndk tools for android. (This can be done very easily on Arch Linux - there is a android-ndk package in the AUR)

2. Download and install the android SDK (platform-)tools, (I pretty much installed just about everything related to Android from the AUR heh)

3. Set up a AVD for the emulator. This can be done by executing android which is a GUI tool. The rest of the process should be fairly self explanatory. I have also installed the Android 4.1 (API 16) from within that GUI tool.

  1. Compile the Nimrod backend by executing: nimrod c jni/backend.nim

5. Execute ndk-build NDK_DEBUG=1. Should work without that DEBUG option, but since I have only confirmed that it works with it, better try building with that option.

6. Execute ant debug. Everything should compile successfully into a .apk file in the bin/ directory.

7. You can then run your emulator and install the .apk package using adb install hello-jni-debug.apk.

After that succeeds you should see a "HelloJni" app in your "Phone's" menu in the emulator.

The output should be "Some addition: 13".

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