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# determine compiler
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(CMAKE_COMPILER_IS_CLANG TRUE)
set(CLANGCXX_MINVER "5")
message(STATUS "clang++ version ${CMAKE_CXX_COMPILER_VERSION}")
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS CLANGCXX_MINVER)
message(FATAL_ERROR "A minimum of clang++ ${CLANGCXX_MINVER} is required for C++17 support")
endif()
endif()
# compiler version checks TODO: test more compilers
if (CMAKE_COMPILER_IS_GNUCXX)
set(GNUCXX_MINVER "9")
message(STATUS "g++ version ${CMAKE_CXX_COMPILER_VERSION}")
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS GNUCXX_MINVER)
message(FATAL_ERROR "A minimum of g++ ${GNUCXX_MINVER} is required for C++17 support")
endif()
endif()
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