Why GNU works but uutils doesn't

GNU coreutils (Ubuntu has separate binaries):

$ podman run --rm ubuntu:latest bash -c 'ls -lh /usr/bin/{md5sum,sha256sum}'
-rwxr-xr-x. 1 root root 67K Jun 22 16:21 /usr/bin/md5sum
-rwxr-xr-x. 1 root root 67K Jun 22 16:21 /usr/bin/sha256sum

$ podman run --rm ubuntu:latest bash -c 'stat -c "%i" /usr/bin/md5sum /usr/bin/sha256sum'
62920843
62920983
# Different inodes = separate files, not symlinks

test uutils (only hashsum binary):

$ cargo build --release --package uu_hashsum
$ ls target/release/{hashsum,md5sum,sha256sum}
target/release/hashsum              # exists
target/release/md5sum: No such file # missing
target/release/sha256sum: No such file # missing

Root cause:

GNU: Separate C source files (md5sum.c, sha256sum.c) → separate binaries
uutils: One Rust module with name detection → only hashsum binary built
Missing: 15 [[bin]] entries in src/uu/hashsum/Cargo.toml

fix: add to src/uu/hashsum/Cargo.toml:

coreutils/src/uu/hashsum/Cargo.toml

Lines 25 to 27 in db5e34e

    
           [[bin]] 
        
           name = "hashsum" 
        
           path = "src/main.rs"

[[bin]]
name = "md5sum"
path = "src/main.rs"

[[bin]]
name = "sha256sum"
path = "src/main.rs"

# ... +13 more (sha1sum, sha512sum, b2sum, b3sum, etc.)

Uh oh!

md5sum. sha256sum etc missing when not building multicall #8861

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