How to pass environment variables to the cargo run command?

[sylvain-bouchard]

Environment: Mac OS (Sonoma)
cargo-watch version: 8.5.2

Here is the command I am issuing:

cargo watch -w ./src -x run

For the cargo run command to work, it has to find a lib installed under:

/Library/Frameworks/GStreamer.framework/Versions/1.0/lib

I already have this export in my .zshrc file:

export DYLD_LIBRARY_PATH="/Library/Frameworks/GStreamer.framework/Versions/1.0/lib:$DYLD_LIBRARY_PATH"

It works if I issue a cargo run command directly, but not through a cargo watch -w ./src -x run. The above library path is not explored.

How do I set DYLD_LIBRARY_PATH environment variable so that is it visible to the cargo run command executed through cargo watch? Setting this variable inline to the cargo watch command does not work. I have tried many things, including the -- switch, but nothing works.

[passcod]

cargo watch -E WHAT=EVER -x run

[passcod]

Or use --env-file to use a dotenv-style file.

[sylvain-bouchard]

The -E switch works. Thanks.