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cmake: detect C++ standard automatically

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This commit is contained in:
Mikhail Paulyshka 2023-04-12 01:56:47 +03:00
parent 75f3b1c094
commit 87e21a3734
1 changed files with 10 additions and 0 deletions
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CMakeLists.txt
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@ -157,6 +157,16 @@ option(FMT_OS "Include core requiring OS (Windows/Posix) " ON)
option(FMT_MODULE "Build a module instead of a traditional library." OFF) option(FMT_MODULE "Build a module instead of a traditional library." OFF)
option(FMT_SYSTEM_HEADERS "Expose headers with marking them as system." OFF) option(FMT_SYSTEM_HEADERS "Expose headers with marking them as system." OFF)
# Set the highest supported standard if it has not been externally defined
if(NOT DEFINED CMAKE_CXX_STANDARD)
foreach(std_ver 23 20 17 14 11)
if(CMAKE_CXX_COMPILE_FEATURES MATCHES "cxx_std_${std_ver}")
set(CMAKE_CXX_STANDARD ${std_ver})
break()
endif()
endforeach()
endif()
set(FMT_CAN_MODULE OFF) set(FMT_CAN_MODULE OFF)
if (CMAKE_CXX_STANDARD GREATER 17 AND NOT MSVC) if (CMAKE_CXX_STANDARD GREATER 17 AND NOT MSVC)
set(FMT_CAN_MODULE ON) set(FMT_CAN_MODULE ON)