mbpoll: 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, 44 insertions, 2 deletions

diff --git a/meta-oe/recipes-devtools/mbpoll/mbpoll/0001-allow-build-with-cmake-4.patch b/meta-oe/recipes-devtools/mbpoll/mbpoll/0001-allow-build-with-cmake-4.patch
new file mode 100644
index 0000000000..25f4692856
--- /dev/null
+++ b/meta-oe/recipes-devtools/mbpoll/mbpoll/0001-allow-build-with-cmake-4.patch
@@ -0,0 +1,42 @@
+From 765fbaea85b723893c0c27d5527df479ab6abc46 Mon Sep 17 00:00:00 2001
+From: Alper Ak <alperyasinak1@gmail.com>
+Date: Mon, 7 Jul 2025 20:09:45 +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/epsilonrt/mbpoll/pull/95]
+
+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 6daa039..af32354 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,6 +1,6 @@
+ # -*- CMakeLists.txt generated by CodeLite IDE. Do not edit by hand -*-
+ 
+-cmake_minimum_required(VERSION 2.9)
++cmake_minimum_required(VERSION 3.5)
+ 
+ # Workspace name
+ project(mbpoll)
+-- 
+2.43.0
+
diff --git a/meta-oe/recipes-devtools/mbpoll/mbpoll_1.5.2.bb b/meta-oe/recipes-devtools/mbpoll/mbpoll_1.5.2.bb
index 4590b49955..82afe632fd 100644
--- a/meta-oe/recipes-devtools/mbpoll/mbpoll_1.5.2.bb
+++ b/meta-oe/recipes-devtools/mbpoll/mbpoll_1.5.2.bb
@@ -8,8 +8,8 @@ HOMEPAGE = "https://github.com/epsilonrt/mbpoll"
 LIC_FILES_CHKSUM = "file://COPYING;md5=1ebbd3e34237af26da5dc08a4e440464"
 DEPENDS = "libmodbus (>=3.1.4)"
 
-SRC_URI = "git://github.com/epsilonrt/mbpoll;protocol=https;branch=master"
+SRC_URI = "git://github.com/epsilonrt/mbpoll;protocol=https;branch=master \
+        file://0001-allow-build-with-cmake-4.patch"
 SRCREV = "a0bd6c08d3d15b086f2104477295c0705aed366a"
 
-
 inherit pkgconfig cmake