dev-cpp/cctz: fix build with cmake 4

Closes: https://bugs.gentoo.org/951679
Signed-off-by: Kostadin Shishmanov <kostadinshishmanov@protonmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/42231
Closes: https://github.com/gentoo/gentoo/pull/42231
Signed-off-by: Sam James <sam@gentoo.org>

dev-cpp/cctz/cctz-2.4-r1.ebuild

@@ -0,0 +1,34 @@
+# Copyright 2023-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="C++ library for dealing with time zones and time conversion"
+HOMEPAGE="https://github.com/google/cctz"
+SRC_URI="https://github.com/google/cctz/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	test? (
+		dev-cpp/gtest
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-2.4-cmake4.patch"
+)
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_TESTING=$(usex test)
+		-DBUILD_BENCHMARK=OFF
+	)
+	cmake_src_configure
+}

dev-cpp/cctz/files/cctz-2.4-cmake4.patch

@@ -0,0 +1,66 @@
+https://bugs.gentoo.org/951679
+https://github.com/google/cctz/commit/f62d7b7
+
+From f62d7b778289959fa117c13ce190387690400611 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
+Date: Mon, 8 Jul 2024 16:07:59 +0200
+Subject: [PATCH] [cmake] Require CMake 3.16 (#292)
+
+Follow Google's OSS policy.
+Remove other code specific for CMake < 3.16
+---
+ CMakeLists.txt | 28 +++++++---------------------
+ 1 file changed, 7 insertions(+), 21 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c0f2c58..0bf696b 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,8 +1,6 @@
+-cmake_minimum_required(VERSION 2.8.12)
+-
+-if (POLICY CMP0025)
+-  cmake_policy(SET CMP0025 NEW)
+-endif()
++# https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md
++# As of 2024-07-01, CMake 3.16 is the minimum supported version.
++cmake_minimum_required(VERSION 3.16)
+ 
+ project(cctz)
+ 
+@@ -51,20 +49,12 @@ if (BUILD_TESTING)
+   )
+ endif()
+ 
+-# Starting from CMake >= 3.1, if a specific standard is required,
++# If a specific standard is required,
+ # it can be set from the command line with:
+-#     cmake -DCMAKE_CXX_STANDARD=[11|14|17]
++#     cmake -DCMAKE_CXX_STANDARD=[11|14|17|20|23]
+ function(cctz_target_set_cxx_standard target)
+   set(cxx_standard 11)
+-  if (CMAKE_VERSION VERSION_LESS "3.1")
+-    if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+-      target_compile_options(${target} PRIVATE -std=c++${cxx_standard})
+-    endif()
+-  elseif (CMAKE_VERSION VERSION_LESS "3.8")
+-    set_property(TARGET ${target} PROPERTY CXX_STANDARD ${cxx_standard})
+-  else()
+-    target_compile_features(${target} PUBLIC cxx_std_${cxx_standard})
+-  endif()
++  target_compile_features(${target} PUBLIC cxx_std_${cxx_standard})
+ endfunction()
+ 
+ if(APPLE)
+@@ -191,10 +181,6 @@ install(FILES cmake/${PROJECT_NAME}-config.cmake
+   DESTINATION ${CMAKE_INSTALL_CONFIGDIR}
+   )
+ 
+-if (CMAKE_VERSION VERSION_LESS "3.8")
+-  set(quiet_on_empty "")
+-else()
+-  set(quiet_on_empty QUIET_ON_EMPTY)
+-endif()
++set(quiet_on_empty QUIET_ON_EMPTY)
+ 
+ feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES ${quiet_on_empty})