# HOWTO BUILD

[cross](https://github.com/rust-embedded/cross) is used for cross compiling zkgroup.

* download new release from `https://github.com/signalapp/zkgroup/releases`
* unzip + change into directory
* run `cross build --target x86_64-unknown-linux-gnu --release`
  run `cross build --target armv7-unknown-linux-gnueabihf --release`
  run `cross build --target aarch64-unknown-linux-gnu --release`
to build the library for `x86-64`, `armv7` and `arm64`
* the built library will be in the `target/<architecture>/release` folder