dlib-raspberrypi

🚀️ Always up-to-date Dlib binaries for Raspberry Pi - just download and use it.

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Dlib binaries are compiled with the GCC Toolchain targeting older glibc versions, ensuring compatibility across a wide range of Raspberry Pi boards running Raspberry Pi OS 64-bit. GitHub CI workflows are used to automate the build process: pipelines run daily, but new builds are triggered only when a new Dlib release is available.

Why?

• No official Dlib packages. There are no prebuilt official Dlib packages for Raspberry Pi OS, forcing users to compile it from source themselves.
• Slow compilation on Raspberry Pi. Building Dlib directly on a Raspberry Pi can take hours and often runs into the limited RAM available on the device.
• Always up to date. GitHub CI workflows rebuild and publish Dlib automatically whenever a new version is released upstream.
• No extra dependencies. The required libraries are statically linked, so the Dlib binaries only depend on the base system libraries already present on Raspberry Pi OS.

Build Information

• Dynamically linked with an older glibc version. For details, see the GCC Toolchain.
• Statically linked with libstdc++, libgcc, and OpenBLAS.

Precompiled Binaries

If you prefer not to build the Dlib yourself, a precompiled Dlib can be downloaded from the releases page.

curl -sSLo dlib.deb https://github.com/prepkg/dlib-raspberrypi/releases/latest/download/dlib-aarch64-linux-gnu.deb \
  && sudo apt install -y ./dlib.deb \
  && rm -rf dlib.deb

Compilation

Requirements

• Git
• Docker

Instructions

• Clone the repository:

git clone https://github.com/prepkg/dlib-raspberrypi.git && cd dlib-raspberrypi

• Build the Docker image:

./setup.sh build-image

• Build the library:

./setup.sh build-lib

After compilation, the deb package will be available in the build directory.

• (Optional) Run the test to verify that the library links correctly and the resulting binary runs under QEMU:

./setup.sh test-lib