1 files changed, 10 insertions, 0 deletions
diff --git a/library/compiler-builtins/crates/util/build.rs b/library/compiler-builtins/crates/util/build.rs
new file mode 100644
index 00000000000..a1be4127527
--- /dev/null
+++ b/library/compiler-builtins/crates/util/build.rs
@@ -0,0 +1,10 @@
+#![allow(unexpected_cfgs)]
+
+#[path = "../../libm/configure.rs"]
+mod configure;
+
+fn main() {
+    println!("cargo:rerun-if-changed=../../libm/configure.rs");
+    let cfg = configure::Config::from_env();
+    configure::emit_libm_config(&cfg);
+}