From 572d141080a7dbdf1c6c46d9952ffb4174053b2e Mon Sep 17 00:00:00 2001
From: Andreas Sturmlechner <asturm@gentoo.org>
Date: Sun, 17 May 2026 23:48:28 +0200
Subject: [PATCH] sci-libs/parmetis: Fix build w/ CMake-4

Closes: https://bugs.gentoo.org/963577
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>
---
 .../parmetis-4.0.3_p20230326-cmake4.patch     | 21 +++++++++++++++++++
 .../parmetis-4.0.3_p20230326-r1.ebuild        |  6 +++---
 2 files changed, 24 insertions(+), 3 deletions(-)
 create mode 100644 sci-libs/parmetis/files/parmetis-4.0.3_p20230326-cmake4.patch

diff --git a/sci-libs/parmetis/files/parmetis-4.0.3_p20230326-cmake4.patch b/sci-libs/parmetis/files/parmetis-4.0.3_p20230326-cmake4.patch
new file mode 100644
index 0000000000000..9a4ac63be27fb
--- /dev/null
+++ b/sci-libs/parmetis/files/parmetis-4.0.3_p20230326-cmake4.patch
@@ -0,0 +1,21 @@
+Source: https://github.com/KarypisLab/ParMETIS/pull/34
+
+From c4731003101f0579505c3fe6c07247e17be24e39 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
+Date: Fri, 4 Jul 2025 23:14:49 +0200
+Subject: [PATCH] Require CMake 3.10
+
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 146bc5f..b1661a9 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-cmake_minimum_required(VERSION 2.8)
++cmake_minimum_required(VERSION 3.10)
+ project(ParMETIS C)
+ 
+ 
diff --git a/sci-libs/parmetis/parmetis-4.0.3_p20230326-r1.ebuild b/sci-libs/parmetis/parmetis-4.0.3_p20230326-r1.ebuild
index c817ebf2cf85e..61b9d13c7a5e7 100644
--- a/sci-libs/parmetis/parmetis-4.0.3_p20230326-r1.ebuild
+++ b/sci-libs/parmetis/parmetis-4.0.3_p20230326-r1.ebuild
@@ -1,11 +1,10 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit cmake toolchain-funcs
-
 COMMIT="8ee6a372ca703836f593e3c450ca903f04be14df"
+inherit cmake toolchain-funcs
 
 DESCRIPTION="Parallel (MPI) unstructured graph partitioning library"
 HOMEPAGE="https://github.com/KarypisLab/ParMETIS"
@@ -29,6 +28,7 @@ RDEPEND="${DEPEND}"
 PATCHES=(
 	"${FILESDIR}"/${P}-respect-user-flags.patch
 	"${FILESDIR}"/${P}-multilib.patch
+	"${FILESDIR}"/${P}-cmake4.patch
 )
 
 pkg_pretend() {