D106.1759156684.diff
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	diff --git a/cmake/Modules/EvtGenCompilerFlags.cmake b/cmake/Modules/EvtGenCompilerFlags.cmake
	--- a/cmake/Modules/EvtGenCompilerFlags.cmake
	+++ b/cmake/Modules/EvtGenCompilerFlags.cmake
	@@ -64,11 +64,13 @@

	# C++ standard settings
	set(CMAKE_CXX_EXTENSIONS OFF)
	+set(EVTGEN_CXX_STANDARD 17)
	if(DEFINED ENV{CMAKE_CXX_STANDARD})
	- set(CMAKE_CXX_STANDARD $ENV{CMAKE_CXX_STANDARD} CACHE STRING "C++ standard")
	-else()
	- set(CMAKE_CXX_STANDARD 17 CACHE STRING "C++ standard")
	+ if($ENV{CMAKE_CXX_STANDARD} GREATER ${EVTGEN_CXX_STANDARD})
	+ set(EVTGEN_CXX_STANDARD $ENV{CMAKE_CXX_STANDARD})
	+ endif()
	endif()
	+set(CMAKE_CXX_STANDARD ${EVTGEN_CXX_STANDARD} CACHE STRING "C++ standard")
	set(CMAKE_CXX_STANDARD_REQUIRED ON)
	message(STATUS "EvtGen: Using C++${CMAKE_CXX_STANDARD} standard")