Support c_void*

src/main.rs

@@ -33,6 +33,7 @@ fn map_path(p: &Path) -> String {
         "u8" => "uint8_t".to_string(),
         "u32" => "uint32_t".to_string(),
         "f32" => "float".to_string(),
+        "c_void" => "void".to_string(),
         _ => l,
     }
 }