musl-locales: Add patch to support builds with CMake 4+

PR [0] has been filed upstream, but isn't merged yet.

[0]: https://git.adelielinux.org/adelie/musl-locales/-/merge_requests/10

(From OE-Core rev: ab7c39ac6d3145b8f711282ebd2c6da5ebfb3de1)

Signed-off-by: Moritz Haase <Moritz.Haase@bmw.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/musl/musl-locales/0001-cmake-Support-builds-with-CMake-4.patch

@@ -0,0 +1,46 @@
+From 89a314b03d0b2e600bb503a1e3d75faa655d65e0 Mon Sep 17 00:00:00 2001
+From: Moritz Haase <Moritz.Haase@bmw.de>
+Date: Wed, 2 Jul 2025 08:37:21 +0200
+Subject: [PATCH] cmake: Support builds with CMake 4+
+
+CMake 4 has removed support for compatibility with CMake < 3.5 and thus builds
+fail with:
+
+    CMake Error at CMakeLists.txt:2 (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.
+
+To ensure builds with older CMake versions are still possible, use the suggested
+'<min>...<max>' syntax instead of simply bumping '<min>'. To avoid a deprecation
+warning by CMake 3.31+, 3.10 was chosen as '<max>' instead of 3.5.
+
+While at it, move the 'cmake_minimum_required()' call before 'project()' to fix:
+
+    CMake Warning (dev) at CMakeLists.txt:2 (project):
+
+      cmake_minimum_required() should be called prior to this top-level
+      project() call.  Please see the cmake-commands(7) manual for usage
+      documentation of both commands.
+
+Signed-off-by: Moritz Haase <Moritz.Haase@bmw.de>
+Upstream-Status: Submitted [https://git.adelielinux.org/adelie/musl-locales/-/merge_requests/10]
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c8ac5c4..5744761 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,5 +1,5 @@
++cmake_minimum_required(VERSION 2.8...3.10)
+ project(locales C)
+-cmake_minimum_required(VERSION 2.8)
+ 
+ option(LOCALE_PROFILE "Install profile file setting the MUSL_LOCPATH environment variable" ON)
+ 

meta/recipes-core/musl/musl-locales_git.bb

@@ -7,7 +7,9 @@ LICENSE = "MIT & LGPL-3.0-or-later"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=cf5713fba707073020b1db2acaa73e78 \
                     file://LICENSE.MIT;md5=a4f1c6864a83ddf4b754cdab7d593523"
 
-SRC_URI = "git://git.adelielinux.org/adelie/musl-locales;protocol=https;branch=main"
+SRC_URI = "git://git.adelielinux.org/adelie/musl-locales;protocol=https;branch=main \
+           file://0001-cmake-Support-builds-with-CMake-4.patch \
+           "
 
 PV = "1.0+git"
 SRCREV = "5663f5bfd30bf9e1e0ba3fc5fe2da6725969f30e"