jansson: Add patch for CMake 4+ compatibility

Fix:

| CMake Error at CMakeLists.txt:1 (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, 39 insertions, 0 deletions

diff --git a/meta-oe/recipes-extended/jansson/jansson/0002-allow-build-with-cmake-4.patch b/meta-oe/recipes-extended/jansson/jansson/0002-allow-build-with-cmake-4.patch
new file mode 100644
index 0000000000..5264f26f81
--- /dev/null
+++ b/meta-oe/recipes-extended/jansson/jansson/0002-allow-build-with-cmake-4.patch
@@ -0,0 +1,38 @@
+From 5d7b2ced666b4fbccd0da6e06d504ae2960575c8 Mon Sep 17 00:00:00 2001
+From: Alper Ak <alperyasinak1@gmail.com>
+Date: Tue, 8 Jul 2025 14:54:08 +0300
+Subject: [PATCH] cmake: Set minimum required version to 3.5 for CMake 4+
+ compatibility
+
+| CMake Error at CMakeLists.txt:1 (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: Backport [https://github.com/akheron/jansson/commit/96d160df90016066d04d493d1d69639474ba4f20]
+
+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 72f9762..d07412e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-cmake_minimum_required (VERSION 3.1)
++cmake_minimum_required (VERSION 3.5)
+ project(jansson C)
+ 
+ # Options
+-- 
+2.43.0
+
diff --git a/meta-oe/recipes-extended/jansson/jansson_2.14.1.bb b/meta-oe/recipes-extended/jansson/jansson_2.14.1.bb
index 715b1af5c5..e0916759c6 100644
--- a/meta-oe/recipes-extended/jansson/jansson_2.14.1.bb
+++ b/meta-oe/recipes-extended/jansson/jansson_2.14.1.bb
@@ -7,6 +7,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=d9911525d4128bee234ee2d3ccaa2537"
 SRC_URI = "https://github.com/akheron/${BPN}/releases/download/v${PV}/${BP}.tar.bz2 \
            file://0001-Honour-multilib-paths.patch \
            file://0001-Only-export-symbols-starting-with-json_-and-jansson_.patch \
+           file://0002-allow-build-with-cmake-4.patch \
            "
 SRC_URI[sha256sum] = "6bd82d3043dadbcd58daaf903d974891128d22aab7dada5d399cb39094af49ce"