Add with_cpp_compat to the builder

src/bindgen/builder.rs

@@ -149,6 +149,12 @@ impl Builder {
         self
     }
 
+    #[allow(unused)]
+    pub fn with_cpp_compat(mut self, cpp_compat: bool) -> Builder {
+        self.config.cpp_compat = cpp_compat;
+        self
+    }
+
     #[allow(unused)]
     pub fn with_style(mut self, style: Style) -> Builder {
         self.config.style = style;