Link libatomic on 32-bit targets

This is needed since https://reviews.llvm.org/D128070.
rust-lang · Aug 9, 2022 · 1db8171 · 1db8171
1 parent 89582e8
commit 1db8171
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs
@@ -242,6 +242,13 @@ fn main() {
         println!("cargo:rustc-link-lib=uuid");
     } else if target.contains("netbsd") || target.contains("haiku") || target.contains("darwin") {
         println!("cargo:rustc-link-lib=z");
+    } else if target.starts_with("arm")
+        || target.starts_with("mips-")
+        || target.starts_with("mipsel-")
+        || target.starts_with("powerpc-")
+    {
+        // 32-bit targets need to link libatomic.
+        println!("cargo:rustc-link-lib=atomic");
     }
     cmd.args(&components);