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Check upper bound of CXX_STANDARD and always disable extensions

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Dennis Klein 2018-04-23 16:53:55 +02:00
parent 884e071757
commit 96e326cf3c
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1 changed files with 5 additions and 4 deletions
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7
cmake/FairMQLib.cmake
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@ -112,18 +112,19 @@ macro(set_fairmq_defaults)
set(CMAKE_BUILD_TYPE RelWithDebInfo)
endif()
# Handle C++ standard level
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 11)
elseif(${CMAKE_CXX_STANDARD} LESS 11)
message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of 11 is required.")
elseif(${CMAKE_CXX_STANDARD} GREATER 11)
message(WARNING "A CMAKE_CXX_STANDARD of ${CMAKE_CXX_STANDARD} (greater than 11) is not tested. Use on your own risk.")
endif()
if(NOT CMAKE_CXX_EXTENSIONS)
set(CMAKE_CXX_EXTENSIONS OFF)
endif()
# Set -fpic as default for all library types
# Set -fPIC as default for all library types
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html)