make bz_internal_error an extern fn

folkertdev · folkertdev · commit 6a5073aa61c2 · 2025-02-28T14:27:02.000+01:00
We're treating this as a soundness fix.
Technically this is breaking MSRV, but we believe this will not be observed by any of our users.
diff --git a/bzip2-sys/lib.rs b/bzip2-sys/lib.rs
@@ -69,6 +69,6 @@ abi_compat! {
 }
 
 #[no_mangle]
-pub fn bz_internal_error(errcode: c_int) {
+pub extern "C" fn bz_internal_error(errcode: c_int) {
     panic!("bz internal error: {}", errcode);
 }

Original file line number	Diff line number	Diff line change
`@@ -69,6 +69,6 @@ abi_compat! {`
`69`	`69`	`}`
`70`	`70`
`71`	`71`	`#[no_mangle]`
`72`		`-pub fn bz_internal_error(errcode: c_int) {`
	`72`	`+pub extern "C" fn bz_internal_error(errcode: c_int) {`
`73`	`73`	`panic!("bz internal error: {}", errcode);`
`74`	`74`	`}`