https://invent.kde.org/sdk/clazy/-/commit/b0d831a6716229d18f2677c5d356b37f36d4dfd6

From: Sergio Martins <smartins@kde.org>
Date: Thu, 2 Dec 2021 11:31:58 +0000
Subject: [PATCH] cmake: Require c++17

Fixes build with newer compiler which were nagging about not
finding std::filesystem
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,7 +69,7 @@ if(MSVC)
   # disable trigger-happy warnings from Clang/LLVM headers
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4267 /wd4244 /wd4291 /wd4800 /wd4141 /wd4146 /wd4251")
 elseif(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -fno-exceptions -fno-rtti")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -fno-exceptions -fno-rtti")
 endif()
 
 set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,-flat_namespace -Wl,-undefined -Wl,suppress")
GitLab