From 7fc60e733dcb6cd0b7e5fa8377a74cbfa7b2bf1f Mon Sep 17 00:00:00 2001
From: Marc Chevrier <marc.chevrier@gmail.com>
Date: Sun, 2 Aug 2026 15:54:33 +0200
Subject: [PATCH] FindPython: Fix CMAKE_LANG_COMPILER_ARCHITECTURE_ID check

Fixes: #28012
---
 Modules/FindPython/Support.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/FindPython/Support.cmake b/Modules/FindPython/Support.cmake
index f5f7576b68..42496328a1 100644
--- a/Modules/FindPython/Support.cmake
+++ b/Modules/FindPython/Support.cmake
@@ -1776,6 +1776,9 @@ block (SCOPE_FOR VARIABLES PROPAGATE _${_PYTHON_PREFIX}_ARCHITECTURE_ID)
     set (_${_PYTHON_PREFIX}_ARCHITECTURE_ID "${CMAKE_SYSTEM_PROCESSOR}")
     break()
   endwhile()
+  # normalize architecture name
+  string(REPLACE "aarch" "ARM" _${_PYTHON_PREFIX}_ARCHITECTURE_ID "${_${_PYTHON_PREFIX}_ARCHITECTURE_ID}")
+  string(TOUPPER "${_${_PYTHON_PREFIX}_ARCHITECTURE_ID}" _${_PYTHON_PREFIX}_ARCHITECTURE_ID)
 endblock()
 
 # Python and Anaconda distributions: define which architectures can be used