- Use the C++ setting from "outside"; ECM uses modern C++ by default now
- Fix build against KDE Frameworks 5.83
  (no longer ships find module, and the
  cmake default one is used).

--- CMakeLists.txt.orig	2020-05-14 06:53:49 UTC
+++ CMakeLists.txt
@@ -104,13 +104,7 @@ if(NOT DEFINED RELEASE_BUILD)
 endif()
 message(STATUS "Release build: ${RELEASE_BUILD}")
 
-# use CPP-11
-if (CMAKE_VERSION VERSION_LESS "3.1")
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-else ()
-    set (CMAKE_CXX_STANDARD 11)
-endif ()
-
+    set (CMAKE_CXX_STANDARD 17)
 ############
 #############
 ## Options ##
@@ -641,8 +634,8 @@ if(NOT WIN32 AND NOT APPLE)
 	)
 endif()
 
-if(NOT FONTCONFIG_FOUND OR NOT FREETYPE_FOUND)
-    set(FONTCONFIG_INCLUDE_DIR "")
+if(NOT Fontconfig_FOUND OR NOT FREETYPE_FOUND)
+    set(Fontconfig_INCLUDE_DIRS "")
     set(FREETYPE_INCLUDE_DIRS "")
 else()
     add_definitions( -DSHOULD_BUILD_FONT_CONVERSION )