From a427d418fd0004f12a7d59899e6994238daed9aa Mon Sep 17 00:00:00 2001
From: BlackHoleFox <blackholefoxdev@gmail.com>
Date: Mon, 5 Dec 2022 23:15:16 -0600
Subject: Add deployment-target --print flag for Apple targets

---
 compiler/rustc_driver_impl/src/lib.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'compiler/rustc_driver_impl/src')

diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index 5fac485de64..b9fb944b0c6 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -745,6 +745,22 @@ fn print_crate_info(
                     }
                 }
             }
+            DeploymentTarget => {
+                use rustc_target::spec::current_apple_deployment_target;
+
+                if sess.target.is_like_osx {
+                    safe_println!(
+                        "deployment_target={}",
+                        current_apple_deployment_target(&sess.target)
+                            .expect("unknown Apple target OS")
+                    )
+                } else {
+                    early_error(
+                        ErrorOutputType::default(),
+                        "only Apple targets currently support deployment version info",
+                    )
+                }
+            }
         }
     }
     Compilation::Stop
-- 
cgit 1.4.1-3-g733a5