diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..348a1ec
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,7 @@
+fn main() {
+    match std::env::var("CARGO_CFG_TARGET_OS").as_deref() {
+        Ok("freebsd") => println!("cargo::rustc-link-search=native=/usr/local/lib"),
+        Ok("openbsd") => println!("cargo::rustc-link-search=native=/usr/X11R6/lib"),
+        _ => {}
+    }
+}