From: https://github.com/luceneplusplus/LucenePlusPlus/pull/218

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

--- 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)
 
 ####################################
--- 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)