cmatrix: Add patch for CMake 4+ compatibility

Fix:

| CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
|   Compatibility with CMake < 3.5 has been removed from CMake.
|
|   Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
|   to tell CMake that the project requires at least <min> but has been updated
|   to work with policies introduced by <max> or earlier.
|
|   Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
|
|
| -- Configuring incomplete, errors occurred!

Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 43 insertions, 0 deletions

diff --git a/meta-oe/recipes-extended/cmatrix/cmatrix/0002-allow-build-with-cmake-4.patch b/meta-oe/recipes-extended/cmatrix/cmatrix/0002-allow-build-with-cmake-4.patch
new file mode 100644
index 0000000000..ab5229a94a
--- /dev/null
+++ b/meta-oe/recipes-extended/cmatrix/cmatrix/0002-allow-build-with-cmake-4.patch
@@ -0,0 +1,42 @@
+From 1099359c94bb3e404446d3624e4400823de27367 Mon Sep 17 00:00:00 2001
+From: Alper Ak <alperyasinak1@gmail.com>
+Date: Thu, 10 Jul 2025 13:39:21 +0300
+Subject: [PATCH] cmake: Set minimum required version to 3.5 for CMake 4+
+ compatibility
+
+Fix
+
+| CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
+|   Compatibility with CMake < 3.5 has been removed from CMake.
+|
+|   Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
+|   to tell CMake that the project requires at least <min> but has been updated
+|   to work with policies introduced by <max> or earlier.
+|
+|   Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
+|
+|
+| -- Configuring incomplete, errors occurred!
+
+Upstream-Status: Submitted [https://github.com/abishekvashok/cmatrix/pull/201]
+
+Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a2f8b4d..3e60aec 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,6 +1,6 @@
+ # CMake build system for CMatrix
+ 
+-cmake_minimum_required(VERSION 2.8)
++cmake_minimum_required(VERSION 3.5)
+ 
+ project(CMatrix LANGUAGES C)
+ set(VERSION "2.0")
+-- 
+2.43.0
+
diff --git a/meta-oe/recipes-extended/cmatrix/cmatrix_2.0.bb b/meta-oe/recipes-extended/cmatrix/cmatrix_2.0.bb
index e1a6af622b..2c00c6ded4 100644
--- a/meta-oe/recipes-extended/cmatrix/cmatrix_2.0.bb
+++ b/meta-oe/recipes-extended/cmatrix/cmatrix_2.0.bb
@@ -6,6 +6,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 SRC_URI = " \
     git://github.com/abishekvashok/cmatrix.git;branch=stable;protocol=https \
     file://0001-reproducibility-Prevent-configuration-from-reading-h.patch \
+    file://0002-allow-build-with-cmake-4.patch \
 "
 SRCREV = "adfdf1656f23e5ab3b52c7d7edf91249a4477e8d"