Fix the flock fallback implementation

rust-lang · Aug 15, 2021 · 21f07b5 · 21f07b5
1 parent 58d685e
commit 21f07b5
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/compiler/rustc_data_structures/src/flock.rs b/compiler/rustc_data_structures/src/flock.rs
@@ -222,6 +222,10 @@ cfg_if! {
                 let msg = "file locks not supported on this platform";
                 Err(io::Error::new(io::ErrorKind::Other, msg))
             }
+
+            pub fn error_unsupported(_err: &io::Error) -> bool {
+                true
+            }
         }
     }
 }