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Merge pull request #1441 from iwanders/support-cmake-older-than-3-8-with-if

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Use C++11 features supported by CMake 3.1.
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Niels Lohmann 2019-03-10 22:08:16 +01:00 committed by GitHub
commit 8eb7db7277
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3 changed files with 11 additions and 3 deletions
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4
CMakeLists.txt
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@ -46,7 +46,11 @@ endif()
##
add_library(${NLOHMANN_JSON_TARGET_NAME} INTERFACE)
add_library(${PROJECT_NAME}::${NLOHMANN_JSON_TARGET_NAME} ALIAS ${NLOHMANN_JSON_TARGET_NAME})
if (${CMAKE_VERSION} VERSION_LESS "3.8.0")
target_compile_features(${NLOHMANN_JSON_TARGET_NAME} INTERFACE cxx_range_for)
else()
target_compile_features(${NLOHMANN_JSON_TARGET_NAME} INTERFACE cxx_std_11)
endif()
target_include_directories(
${NLOHMANN_JSON_TARGET_NAME}

2
benchmarks/CMakeLists.txt
View file

@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.1)
cmake_minimum_required(VERSION 3.8)
project(JSON_Benchmarks LANGUAGES CXX)
# set compiler flags

4
test/CMakeLists.txt
View file

@ -64,7 +64,11 @@ set_target_properties(catch_main PROPERTIES
COMPILE_DEFINITIONS "$<$<CXX_COMPILER_ID:MSVC>:_SCL_SECURE_NO_WARNINGS>"
COMPILE_OPTIONS "$<$<CXX_COMPILER_ID:MSVC>:/EHsc;$<$<CONFIG:Release>:/Od>>"
)
if (${CMAKE_VERSION} VERSION_LESS "3.8.0")
target_compile_features(catch_main PUBLIC cxx_range_for)
else()
target_compile_features(catch_main PUBLIC cxx_std_11)
endif()
target_include_directories(catch_main PRIVATE "thirdparty/catch")
# https://stackoverflow.com/questions/2368811/how-to-set-warning-level-in-cmake