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propagate new c++ standard handling from main CMakeLists.txt to plugin version

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This commit is contained in:
Axel Kohlmeyer
2024-10-03 15:39:33 -04:00
parent 131b40c806
commit e06be9b030
1 changed files with 22 additions and 2 deletions
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24
examples/plugins/CMakeLists.txt
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@ -42,8 +42,28 @@ else()
endif()
endif()
# C++11 is required
set(CMAKE_CXX_STANDARD 11)
# we *require* C++11 without extensions but prefer C++17.
# Kokkos requires at least C++17 (currently)
if(NOT CMAKE_CXX_STANDARD)
if(cxx_std_17 IN_LIST CMAKE_CXX_COMPILE_FEATURES)
set(CMAKE_CXX_STANDARD 17)
else()
set(CMAKE_CXX_STANDARD 11)
endif()
endif()
if(CMAKE_CXX_STANDARD LESS 11)
message(FATAL_ERROR "C++ standard must be set to at least 11")
endif()
if(CMAKE_CXX_STANDARD LESS 17)
message(WARNING "Selecting C++17 standard is preferred over C++${CMAKE_CXX_STANDARD}")
endif()
if(PKG_KOKKOS AND (CMAKE_CXX_STANDARD LESS 17))
set(CMAKE_CXX_STANDARD 17)
endif()
# turn off C++17 check in lmptype.h
if(LAMMPS_CXX11)
add_compile_definitions(LAMMPS_CXX11)
endif()
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Need -restrict with Intel compilers