gistfile1.txt

diff --git a/Cargo.toml b/Cargo.toml
index c4ae846..587cc45 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,6 +15,7 @@ exclude = [
   "benches/*",
   "test.jpg"
 ]
+build = "build.rs"
 
 [dependencies]
 glium = "0.18.0"
@@ -23,6 +24,9 @@ nalgebra = "0.13.1"
 image = "0.17.0"
 owning_ref = "0.3.3"
 
+[build-dependencies]
+cc = "1.0"
+
 [features]
 default = []
 glfwp5 = ["glfw"]
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..bda7e85
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,9 @@
+extern crate cc;
+
+fn main() {
+    if cfg!(target_os = "macos") {
+        cc::Build::new()
+            .file("pri.c")
+            .compile("pri");
+    }
+}
\ No newline at end of file