Fix a warning on Android.

bytecodealliance · Mar 18, 2023 · 3762e1a · 3762e1a
1 parent ba3609c
commit 3762e1a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/backend/libc/weak.rs b/src/backend/libc/weak.rs
@@ -116,10 +116,13 @@ unsafe fn fetch(name: &str) -> *mut c_void {
 
 #[cfg(not(any(target_os = "android", target_os = "linux")))]
 macro_rules! syscall {
-    (fn $name:ident($($arg_name:ident: $t:ty),*) via $_sys_name:ident -> $ret:ty) => (
+    (fn $name:ident($($arg_name:ident: $t:ty),*) via $sys_name:ident -> $ret:ty) => (
         unsafe fn $name($($arg_name: $t),*) -> $ret {
             weak! { fn $name($($t),*) -> $ret }
 
+            // In this configuration we always call libc and never use `sys_name`.
+            let _ = $sys_name;
+
             if let Some(fun) = $name.get() {
                 fun($($arg_name),*)
             } else {