fix warning from latest rust version

bunnie · bunnie · commit 6e0f6e23a10d · 2025-05-25T14:07:58.000+08:00
diff --git a/libs/xous-bio-bdma/src/lib.rs b/libs/xous-bio-bdma/src/lib.rs
@@ -222,7 +222,7 @@ impl BioSharedState {
 macro_rules! bio_code {
     ($fn_name:ident, $name_start:ident, $name_end:ident, $($item:expr),*) => {
         pub fn $fn_name() -> &'static [u8] {
-            extern {
+            extern "C" {
                 static $name_start: *const u8;
                 static $name_end: *const u8;
             }

Original file line number	Diff line number	Diff line change
`@@ -222,7 +222,7 @@ impl BioSharedState {`
`222`	`222`	`macro_rules! bio_code {`
`223`	`223`	`($fn_name:ident, $name_start:ident, $name_end:ident, $($item:expr),*) => {`
`224`	`224`	`pub fn $fn_name() -> &'static [u8] {`
`225`		`- extern {`
	`225`	`+ extern "C" {`
`226`	`226`	`static $name_start: *const u8;`
`227`	`227`	`static $name_end: *const u8;`
`228`	`228`	`}`