[Bug] Unable to build on musl platforms

[gmartin82]

Describe the bug

Cross-building for musl targets currently fails due to a link issue with the cyclors crate.

  error: linking with `x86_64-linux-musl-gcc` failed: exit status: 1
    |
    = note: LC_ALL="C" PATH="/rust/lib/rustlib/x86_64-unknown-linux-gnu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/rust/bin" VSLANG="1033" "x86_64-linux-musl-gcc" "-m64" "/tmp/rustcbv9cCJ/symbols.o" "<1 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/tmp/rustcbv9cCJ/{libblake3-29c15492f95584c6.rlib,libcyclors-02cc33282643057d.rlib,libring-4af89ca913ab372c.rlib}" "/rust/lib/rustlib/x86_64-unknown-linux-musl/lib/{libcompiler_builtins-cc81168744dff734.rlib}" "-Wl,-Bdynamic" "-ldl" "-lgcc_s" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/target/x86_64-unknown-linux-musl/release/build/ring-0daefb7cc7709f2f/out" "-L" "/target/x86_64-unknown-linux-musl/release/build/cyclors-0b50ece9ad445532/out/cyclonedds-build/lib" "-L" "/target/x86_64-unknown-linux-musl/release/build/cyclors-0b50ece9ad445532/out/cyclocut-build/lib" "-L" "/target/x86_64-unknown-linux-musl/release/build/blake3-146c55510a96ff3f/out" "-L" "/target/x86_64-unknown-linux-musl/release/build/blake3-146c55510a96ff3f/out" "-L" "/rust/lib/rustlib/x86_64-unknown-linux-musl/lib" "-o" "/target/x86_64-unknown-linux-musl/release/deps/zenoh_bridge_dds-f58a172aefd7a6f0" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-Wl,--strip-debug" "-nodefaultlibs"
    = note: some arguments are omitted. use `--verbose` to show all linker arguments
    = note: /usr/local/bin/../lib/gcc/x86_64-linux-musl/9.2.0/../../../../x86_64-linux-musl/bin/ld: /tmp/rustcbv9cCJ/libcyclors-02cc33282643057d.rlib(threads.c.o): in function `ddsrt_thread_create':
            threads.c:(.text.ddsrt_thread_create+0x126): undefined reference to `pthread_attr_setaffinity_np'
            collect2: error: ld returned 1 exit status
            
    = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
    = note: use the `-l` flag to specify native libraries to link
    = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib)
  
  error: could not compile `zenoh-bridge-dds` (bin "zenoh-bridge-dds") due to 1 previous error

To reproduce

1. Run cross build --target x86_64-unknown-linux-musl

System info

• Platform: Ubuntu 24.04
• Target: x86_64-unknown-linux-musl