jniLibs.md

Termux-packages JNI Library Compilation Guide (arm64-v8a)

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This guide explains how to cross-compile the required native libraries from the Nriver/termux-packages repository for Android JNI (arm64-v8a).

Compilation Steps

1. Clone the Repository

git clone https://github.com/Nriver/termux-packages.git
cd termux-packages

2. Start Docker Cross-Compilation Environment

./scripts/run-docker.sh

3. Enter Root and Switch Directory

sudo -i
cd /home/builder/termux-packages

4. Set NDK Environment Variables

export ANDROID_NDK_HOME=/home/builder/lib/android-ndk-r29
export NDK=/home/builder/lib/android-ndk-r29
export TERMUX_NDK=/home/builder/lib/android-ndk-r29

5. (Optional) Set Proxy

If you have network issues, configure the proxy:

export ALL_PROXY=http://192.168.1.100:20809
export HTTP_PROXY=http://192.168.1.100:20809
export HTTPS_PROXY=http://192.168.1.100:20809

git config --global --replace-all http.proxy 'http://192.168.1.100:20809'
git config --global --replace-all https.proxy 'http://192.168.1.100:20809'

6. Remove Unnecessary Packages (Recommended)

# Comment out packages you don't need
sed -i '/pull_package virglrenderer-android/ s/^/#/' ./scripts/generate-bootstraps.sh

7. Start Compilation

./scripts/generate-bootstraps.sh

Note: The compilation may take a long time (10–30+ minutes). Please be patient.

Post-Compilation Processing

After compilation, many .deb packages will be generated.

Required Files to Extract

Extract the following .so files from the corresponding .deb packages and remove the version suffix (e.g., libpcre2-8.so.0 → libpcre2-8.so):

libacl.so
libandroid-selinux.so
libattr.so
libbusybox.so
libcharset.so
libexec_busybox.so
libexec_proot.so
libexec_tar.so
libiconv.so
libpcre2-8.so
libproot-loader.so
libtalloc.so

Final Directory in Android Project

Place the files in:

src/main/jniLibs/arm64-v8a/
├── libacl.so
├── libandroid-selinux.so
├── libattr.so
├── libbusybox.so
├── libcharset.so
├── libexec_busybox.so
├── libexec_proot.so
├── libexec_tar.so
├── libiconv.so
├── libpcre2-8.so
├── libproot-loader.so
└── libtalloc.so