Building libuvc-rs on aarch64 fails with "error[E0425]: cannot find function uvc_mjpeg2rgb in this scope"

[andrii619]

Hi, I am currently building libuvc-rs on an aarch64 architecture. I think my build fails since it cant find libjpeg on my system.
If I run cmake to compile a test app I can see what the current path of libjpeg is:
JPEG_INCLUDE_DIR: /usr/include | JPEG_LIBRARIES: /usr/lib/aarch64-linux-gnu/libjpeg.so

Any idea how I can let cargo know of the exact libjpeg path?

And here is a detailed cargo build output:
Compiling uvc v0.2.0 Running CARGO=/home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/bin/cargo CARGO_CRATE_NAME=uvc CARGO_MANIFEST_DIR=/home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uvc-0.2.0 CARGO_PKG_AUTHORS='Magnus Ulimoen <flymagnus@gmail.com>' CARGO_PKG_DESCRIPTION='Safe and ergonomic wrapper around libuvc, allowing capture of webcam streams' CARGO_PKG_HOMEPAGE='' CARGO_PKG_LICENSE=MIT CARGO_PKG_LICENSE_FILE='' CARGO_PKG_NAME=uvc CARGO_PKG_README=README.md CARGO_PKG_REPOSITORY='https://github.com/mulimoen/libuvc-rs.git' CARGO_PKG_RUST_VERSION='' CARGO_PKG_VERSION=0.2.0 CARGO_PKG_VERSION_MAJOR=0 CARGO_PKG_VERSION_MINOR=2 CARGO_PKG_VERSION_PATCH=0 CARGO_PKG_VERSION_PRE='' LD_LIBRARY_PATH='/home/root/rust-uvc-server/target/debug/deps:/home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/lib' /home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/bin/rustc --crate-name uvc --edition=2018 /home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uvc-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=171 --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=83bfea8dfb414f43 -C extra-filename=-83bfea8dfb414f43 --out-dir /home/root/rust-uvc-server/target/debug/deps -L dependency=/home/root/rust-uvc-server/target/debug/deps --extern uvc_sys=/home/root/rust-uvc-server/target/debug/deps/libuvc_sys-c9d07d5665601a18.rmeta --cap-lints warn error[E0425]: cannot find function 'uvc_mjpeg2rgb' in this scope --> /home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uvc-0.2.0/src/frame.rs:39:39 | 39 | FrameFormat::MJPEG => uvc_mjpeg2rgb(self.frame.as_ptr(), new_frame.frame.as_ptr()), | ^^^^^^^^^^^^^ not found in this scope
For more information about this error, try 'rustc --explain E0425'. error: could not compile 'uvc' (lib) due to 1 previous error
Caused by:
process didn't exit successfully: 'CARGO=/home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/bin/cargo CARGO_CRATE_NAME=uvc CARGO_MANIFEST_DIR=/home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uvc-0.2.0 CARGO_PKG_AUTHORS='Magnus Ulimoen flymagnus@gmail.com' CARGO_PKG_DESCRIPTION='Safe and ergonomic wrapper around libuvc, allowing capture of webcam streams' CARGO_PKG_HOMEPAGE='' CARGO_PKG_LICENSE=MIT CARGO_PKG_LICENSE_FILE='' CARGO_PKG_NAME=uvc CARGO_PKG_README=README.md CARGO_PKG_REPOSITORY='https://github.com/mulimoen/libuvc-rs.git' CARGO_PKG_RUST_VERSION='' CARGO_PKG_VERSION=0.2.0 CARGO_PKG_VERSION_MAJOR=0 CARGO_PKG_VERSION_MINOR=2 CARGO_PKG_VERSION_PATCH=0 CARGO_PKG_VERSION_PRE='' LD_LIBRARY_PATH='/home/root/rust-uvc-server/target/debug/deps:/home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/lib' /home/root/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/bin/rustc --crate-name uvc --edition=2018 /home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/uvc-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=171 --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=83bfea8dfb414f43 -C extra-filename=-83bfea8dfb414f43 --out-dir /home/root/rust-uvc-server/target/debug/deps -L dependency=/home/root/rust-uvc-server/target/debug/deps --extern uvc_sys=/home/root/rust-uvc-server/target/debug/deps/libuvc_sys-c9d07d5665601a18.rmeta --cap-lints warn (exit status: 1)