Android Emacs Build Simple Steps

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Android Emacs Build Steps

1. install java (if not) get path of it via `ls -l /etc/alternatives/java` for JAVA_HOME
2. mkdir android, cd android
3. git clone git://git.sv.gnu.org/emacs.git git checkout feature/android
4. ./autogen.sh
5. download command line tools from https://developer.android.com/studio unzip, move all the contents of cmdline-tools to a sub-folder “latest”; move cmdline-tools folder under android folder;

   folder structure: . └── android/ └── cmdline-tools/ ├── latest/ │ ├── bin │ ├── lib │ ├── Notice.txt │ └── source.properties └── emacs

6. put these lines in .bashrc

   export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
   export ANDROID_HOME=$HOME/android
   export PATH=$JAVA_HOME/bin:$ANDROID_HOME/cmdline-tools/latest/bin:$ANDROID_HOME/cmdline-tools/latest:$PATH
       

7. cd android, run:

   sdkmanager "build-tools;33.0.1" "platform-tools" "platforms;android-33" --install "ndk;25.1.8937393"
       

8. note your android/arm inside ndk/v/toolchains/./././bin/ and use its path in ANDROID_CC

   cd android/emacs, run:

   ./configure --with-android=$ANDROID_HOME/platforms/android-33/android.jar ANDROID_CC=$ANDROID_HOME/ndk/25.1.8937393/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi29-clang SDK_BUILD_TOOLS=$ANDROID_HOME/build-tools/33.0.1 --with-gnutls=ifavailable --with-mailutils
       

9. run: make all

After above process, you will find your emacs android apk inside android/emacs/java folder.