File lucene++-3.0.9-fix-cmake.patch of Package lucene++

From 2857419531c45e542afdc52001a65733f4f9b128 Mon Sep 17 00:00:00 2001
From: Gianfranco Costamagna <locutusofborg@debian.org>
Date: Mon, 8 Sep 2025 15:05:10 +0200
Subject: [PATCH 1/3] Bump minimum required cmake version to 3.10, for new
 cmake 4 compatibility fix

---
 CMakeLists.txt                           | 2 +-
 cmake/cotire.cmake                       | 2 +-
 src/test/gtest/CMakeLists.txt            | 2 +-
 src/test/gtest/googlemock/CMakeLists.txt | 2 +-
 src/test/gtest/googletest/CMakeLists.txt | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c0fc020..280d74a6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@
 # init
 ####################################
 
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.10)
 
 project(lucene++)
 
diff --git a/cmake/cotire.cmake b/cmake/cotire.cmake
index 9a4982d4..071d7b2c 100644
--- a/cmake/cotire.cmake
+++ b/cmake/cotire.cmake
@@ -37,7 +37,7 @@ set(__COTIRE_INCLUDED TRUE)
 if (NOT CMAKE_SCRIPT_MODE_FILE)
 	cmake_policy(PUSH)
 endif()
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.10)
 if (NOT CMAKE_SCRIPT_MODE_FILE)
 	cmake_policy(POP)
 endif()
diff --git a/src/test/gtest/CMakeLists.txt b/src/test/gtest/CMakeLists.txt
index f11bbb52..41b50f64 100644
--- a/src/test/gtest/CMakeLists.txt
+++ b/src/test/gtest/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Note: CMake support is community-based. The maintainers do not use CMake
 # internally.
 
-cmake_minimum_required(VERSION 2.8.8)
+cmake_minimum_required(VERSION 3.10)
 
 if (POLICY CMP0048)
   cmake_policy(SET CMP0048 NEW)
diff --git a/src/test/gtest/googlemock/CMakeLists.txt b/src/test/gtest/googlemock/CMakeLists.txt
index d32b70b5..838ee9b4 100644
--- a/src/test/gtest/googlemock/CMakeLists.txt
+++ b/src/test/gtest/googlemock/CMakeLists.txt
@@ -42,7 +42,7 @@ else()
   cmake_policy(SET CMP0048 NEW)
   project(gmock VERSION ${GOOGLETEST_VERSION} LANGUAGES CXX C)
 endif()
-cmake_minimum_required(VERSION 2.6.4)
+cmake_minimum_required(VERSION 3.10)
 
 if (COMMAND set_up_hermetic_build)
   set_up_hermetic_build()
diff --git a/src/test/gtest/googletest/CMakeLists.txt b/src/test/gtest/googletest/CMakeLists.txt
index db292946..8d6b0719 100644
--- a/src/test/gtest/googletest/CMakeLists.txt
+++ b/src/test/gtest/googletest/CMakeLists.txt
@@ -53,7 +53,7 @@ else()
   cmake_policy(SET CMP0048 NEW)
   project(gtest VERSION ${GOOGLETEST_VERSION} LANGUAGES CXX C)
 endif()
-cmake_minimum_required(VERSION 2.6.4)
+cmake_minimum_required(VERSION 3.10)
 
 if (POLICY CMP0063) # Visibility
   cmake_policy(SET CMP0063 NEW)

From 6b6fc647393eb8f0ad5cc6b19511d51db89bc40d Mon Sep 17 00:00:00 2001
From: Gianfranco Costamagna <locutusofborg@debian.org>
Date: Mon, 8 Sep 2025 15:05:34 +0200
Subject: [PATCH 2/3] Find and use system googletest if available

---
 src/test/CMakeLists.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index f0b9b7e6..7909d871 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -8,8 +8,10 @@ if(MSVC)
   set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 endif()
 
-add_subdirectory(gtest)
-
+find_package(GTest)
+if(NOT GTEST_FOUND)
+  add_subdirectory(gtest)
+endif()
 
 ####################################
 # src

From 6e678a9588a5828172bac71c713f6eed6cb0570d Mon Sep 17 00:00:00 2001
From: Gianfranco Costamagna <locutusofborg@debian.org>
Date: Mon, 8 Sep 2025 15:05:58 +0200
Subject: [PATCH 3/3] Bump minimum std-version to 17, fixing FTBFS with new
 gcc-15 and googletest

---
 CMakeLists.txt                | 2 +-
 src/test/gtest/CMakeLists.txt | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 280d74a6..3677c6d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,7 +47,7 @@ include(dependencies)
 include(Lucene++Docs)
 
 # Enable C++11
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 ####################################
diff --git a/src/test/gtest/CMakeLists.txt b/src/test/gtest/CMakeLists.txt
index 41b50f64..a451d0b6 100644
--- a/src/test/gtest/CMakeLists.txt
+++ b/src/test/gtest/CMakeLists.txt
@@ -11,9 +11,9 @@ project(googletest-distribution)
 set(GOOGLETEST_VERSION 1.10.0)
 
 if (CMAKE_VERSION VERSION_LESS "3.1")
-  add_definitions(-std=c++11)
+  add_definitions(-std=c++17)
 else()
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 17)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   if(NOT CYGWIN)
     set(CMAKE_CXX_EXTENSIONS OFF)