diff --git a/main.c b/main.c
index 0aa5f2b..c98a4c0 100644
--- a/main.c
+++ b/main.c
@@ -36,16 +36,11 @@ const char version[] = VERSION;
 extern char *optarg;
 extern int optind;
 
-extern void print_message_from_rust();
-extern void print_usage();
 extern int rust_main(int argc, char** argv);
 
+//TODO handle this correctly
 int trace_flag = 0;
 
-void usage() {
-  print_usage();
-}
-
 int main(int argc, char **argv) {
   return rust_main(argc, argv);
 }
diff --git a/src/lib.rs b/src/lib.rs
index 276df8f..e5d16e6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,8 +15,7 @@ extern {
   fn radio_download();
 }
 
-#[no_mangle]
-pub extern "C" fn print_usage() {
+fn print_usage() {
   let version = VERSION.unwrap_or("-----");
 
   print!("DMR Config, Version {}, {}", version, COPYRIGHT);
@@ -64,7 +63,7 @@ fn get_options() -> Options {
 }
 
 #[no_mangle]
-pub extern "C" fn rust_main(argc: c_int, argv: *const *const c_char) -> c_int {
+pub extern "C" fn rust_main(_argc: c_int, _argv: *const *const c_char) -> c_int {
 
   let args = std::env::args().skip(1);
   let matches = match get_options().parse(args) {