1 files changed, 13 insertions, 1 deletions
diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs
index 71d8dbe44fe..bf95014843d 100644
--- a/compiler/rustc_session/src/errors.rs
+++ b/compiler/rustc_session/src/errors.rs
@@ -1,4 +1,4 @@
-use std::num::NonZero;
+use std::num::{NonZero, ParseIntError};
 
 use rustc_ast::token;
 use rustc_ast::util::literal::LitError;
@@ -14,6 +14,14 @@ use rustc_target::spec::{SplitDebuginfo, StackProtector, TargetTuple};
 use crate::config::CrateType;
 use crate::parse::ParseSess;
 
+#[derive(Diagnostic)]
+pub(crate) enum AppleDeploymentTarget {
+    #[diag(session_apple_deployment_target_invalid)]
+    Invalid { env_var: &'static str, error: ParseIntError },
+    #[diag(session_apple_deployment_target_too_low)]
+    TooLow { env_var: &'static str, version: String, os_min: String },
+}
+
 pub(crate) struct FeatureGateError {
     pub(crate) span: MultiSpan,
     pub(crate) explain: DiagMessage,
@@ -148,6 +156,10 @@ pub(crate) struct SanitizerCfiGeneralizePointersRequiresCfi;
 pub(crate) struct SanitizerCfiNormalizeIntegersRequiresCfi;
 
 #[derive(Diagnostic)]
+#[diag(session_sanitizer_kcfi_arity_requires_kcfi)]
+pub(crate) struct SanitizerKcfiArityRequiresKcfi;
+
+#[derive(Diagnostic)]
 #[diag(session_sanitizer_kcfi_requires_panic_abort)]
 pub(crate) struct SanitizerKcfiRequiresPanicAbort;