Dune Libvpx Best 🎁 Complete

(library (name my_video_encoder) (foreign_stubs (language c) (names vpx_wrapper) (flags :standard -I%workspace_root/_build/default/libvpx/install/include)) (c_library_flags -L%workspace_root/_build/default/libvpx/install/lib -lvpx) (foreign_archives vpx) ; Link our custom-built libvpx.a (libraries ctypes.foreign) ; optional, for OCaml-ctypes bindings )

Now, we invoke libvpx’s own build system but redirect the output to Dune’s artifact cache. The trick is to set the --prefix and --libdir to Dune’s _build/default/libvpx/install . dune libvpx

Dune’s cross-compilation toolchain ( dune build --target=... ) can be extended to libvpx. Write a dune-workspace file that defines the target triplet, then inside the libvpx rule, use a conditional: Link our custom-built libvpx.a (libraries ctypes.foreign)