Build on musl, using GNU make and target feature "feat_os_unix_musl".

[lidgnulinux]

Hello, I'm not familiar with RUST build. How to put target-feature feat_os_unix_musl on RUSTFLAGS when building using GNU make instead of cargo ? Thanks.
I tried this RUSTFLAGS="-C target-feature=+feat_os_unix_musl", but it seems unrecognized. I'm using 0.0.30 release.

'+feat_os_unix_musl' is not a recognized feature for this target (ignoring feature)

I'm using cargo from rustup.

[lidgnulinux]

I think I need to use feat_os_unix. I don't know where I need to put it on rust flags env.

[lidgnulinux]

I use RUSTFLAGS="-Ctarget-feature=+feat_os_unix" and still get unrecognized feature error.

[lidgnulinux]

Solved by just skipping some utils like pinky uptime users who stdbuf using SKIP_UTILS option.

make SKIP_UTILS="pinky uptime users who stdbuf"