From ced4b6dbc1fcae4a30b39d004ba67242a79434a5 Mon Sep 17 00:00:00 2001
From: Alexander Neumann <30894796+Neumann-A@users.noreply.github.com>
Date: Tue, 3 Oct 2023 07:05:35 +0200
Subject: [PATCH] Remove unnecessary variables for better debug experience
 (#33435)

---
 scripts/ports.cmake | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/scripts/ports.cmake b/scripts/ports.cmake
index ac0b64e6eb..8cc7f125ea 100644
--- a/scripts/ports.cmake
+++ b/scripts/ports.cmake
@@ -1,5 +1,26 @@
 cmake_minimum_required(VERSION 3.21)
 
+# Remove CMAKE_ variables from the script call
+foreach(i RANGE 0 "${CMAKE_ARGC}")
+    unset(CMAKE_ARGV${i})
+endforeach()
+unset(CMAKE_ARGN)
+unset(CMAKE_ARGC)
+unset(i)
+# These don't make sense in script context
+unset(CMAKE_BINARY_DIR)
+unset(CMAKE_SOURCE_DIR)
+unset(CMAKE_CURRENT_BINARY_DIR)
+unset(CMAKE_CURRENT_SOURCE_DIR)
+unset(CMAKE_FILES_DIRECTORY)
+# Minimum CMake version is forced within vcpkg
+unset(CMAKE_MINIMUM_REQUIRED_VERSION)
+# CMAKE_VERSION is enough for doing version checks
+unset(CMAKE_MAJOR_VERSION)
+unset(CMAKE_MINOR_VERSION)
+unset(CMAKE_PATCH_VERSION)
+unset(CMAKE_TWEAK_VERSION)
+
 set(SCRIPTS "${CMAKE_CURRENT_LIST_DIR}" CACHE PATH "Location to stored scripts")
 list(APPEND CMAKE_MODULE_PATH "${SCRIPTS}/cmake")
 include("${SCRIPTS}/cmake/execute_process.cmake")