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CROSS_COMPILING.md

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Cross Compiling

While podsync can be cross-compiled, there are steps to make this easier.

Using rustls helps avoid a native OpenSSL build, which then leaves just two (indirect) dependencies that need to be cross-compiled:

  • libsqlite3-sys
  • ring

These require a cross compiler (and in at least ring's case, C development headers/libraries), for example arm-linux-gnueabihf-gcc or clang -target arm-linux-gnueabihf.

After that, run cargo build --target armv7-unknown-linux-gnueabihf for an armv7 binary on a Linux host (e.g. raspberry pi), or use cross:

cargo install cross
cross build --target armv7-unknown-linux-gnueabihf