Add support for musl (#173)

ethercrab-rs · Mar 4, 2024 · 6ac2e08 · 6ac2e08
1 parent dd85c97
commit 6ac2e08
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diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -127,6 +127,12 @@ jobs:
       - TARGET: "x86_64-unknown-linux-gnu"
     <<: *target_steps_std
 
+  target-x86_64-unknown-linux-musl:
+    resource_class: large
+    environment:
+      - TARGET: "x86_64-unknown-linux-musl"
+    <<: *target_steps_std
+
   miri-x86_64-unknown-linux-gnu:
     resource_class: large
     environment:
@@ -181,6 +187,7 @@ jobs:
 build_jobs: &build_jobs
   jobs:
     - target-x86_64-unknown-linux-gnu
+    - target-x86_64-unknown-linux-musl
     - miri-x86_64-unknown-linux-gnu
     - windows-cross
     - macos-cross

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -54,6 +54,7 @@ An EtherCAT master written in Rust.
   matching on CoE transfer errors.
 - [#169](https://github.com/ethercrab-rs/ethercrab/pull/169) Linux only: add `io_uring`-based
   blocking TX/RX loop for better performance.
+- [#173](https://github.com/ethercrab-rs/ethercrab/pull/173) Add MUSL libc support.
 
 ### Fixed
 

diff --git a/src/std/unix/linux.rs b/src/std/unix/linux.rs
@@ -149,6 +149,10 @@ fn ifreq_ioctl(
 ) -> io::Result<libc::c_int> {
     unsafe {
         #[allow(trivial_casts)]
+        #[cfg(target_env = "musl")]
+        let res = libc::ioctl(lower, cmd as libc::c_int, ifreq as *mut ifreq);
+        #[allow(trivial_casts)]
+        #[cfg(not(target_env = "musl"))]
         let res = libc::ioctl(lower, cmd, ifreq as *mut ifreq);
 
         if res == -1 {