From a983b2fe7b4dbc22727ce1f5c22fd985af6bc1d1 Mon Sep 17 00:00:00 2001
From: Bruno Kolenbrander <59372212+mejrs@users.noreply.github.com>
Date: Thu, 20 Jun 2024 23:56:17 +0200
Subject: [PATCH] Bump diagnostic_namespace rust version (#4268)

---
 pyo3-build-config/src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pyo3-build-config/src/lib.rs b/pyo3-build-config/src/lib.rs
index 2b5e76e4..21e057d8 100644
--- a/pyo3-build-config/src/lib.rs
+++ b/pyo3-build-config/src/lib.rs
@@ -141,7 +141,9 @@ pub fn print_feature_cfgs() {
         println!("cargo:rustc-cfg=invalid_from_utf8_lint");
     }
 
-    if rustc_minor_version >= 78 {
+    // Actually this is available on 1.78, but we should avoid
+    // https://github.com/rust-lang/rust/issues/124651 just in case
+    if rustc_minor_version >= 79 {
         println!("cargo:rustc-cfg=diagnostic_namespace");
     }
 }