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CMake: Update CXX standard handling

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This commit is contained in:
Dennis Klein
2019-06-27 12:13:45 +02:00
committed by Alexey Rybalchenko
parent bee04a260c
commit 128bcceade
2 changed files with 8 additions and 6 deletions
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12
cmake/FairLoggerLib.cmake
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@@ -86,6 +86,7 @@ endfunction()
# Set defaults
macro(set_fairlogger_defaults)
string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWER)
string(TOUPPER ${PROJECT_NAME} PROJECT_NAME_UPPER)
# Set a default build type
if(NOT CMAKE_BUILD_TYPE)
@@ -93,15 +94,14 @@ macro(set_fairlogger_defaults)
endif()
# Handle C++ standard level
set(PROJECT_MIN_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 11)
elseif(${CMAKE_CXX_STANDARD} LESS 11)
message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of 11 is required.")
endif()
if(NOT CMAKE_CXX_EXTENSIONS)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD ${PROJECT_MIN_CXX_STANDARD})
elseif(${CMAKE_CXX_STANDARD} LESS ${PROJECT_MIN_CXX_STANDARD})
message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of ${PROJECT_MIN_CXX_STANDARD} is required.")
endif()
set(CMAKE_CXX_EXTENSIONS OFF)
# Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)