json/test/cmake_add_subdirectory/project/CMakeLists.txt

cmake_minimum_required(VERSION 3.1)

project(DummyImport CXX)

set(JSON_BuildTests OFF CACHE INTERNAL "")
add_subdirectory(${nlohmann_json_source}
   ${CMAKE_CURRENT_BINARY_DIR}/nlohmann_json)

add_executable(with_namespace_target main.cpp)
target_link_libraries(with_namespace_target nlohmann_json::nlohmann_json)

add_executable(without_namespace_target main.cpp)
target_link_libraries(without_namespace_target nlohmann_json)
buildsystem: relax requirement on cmake version Commit 73cc5089 (Using target_compile_features to specify C++ 11 standard) bumped the required cmake version, from 3.0 to 3.8, so as to get the definition of target_compile_features(). However, target_compile_features() was introduced in cmake-3.1: https://cmake.org/cmake/help/v3.1/command/target_compile_features.html And using cmake-3.1 is indeed sufficient to properly build. As such, relax the minimum required version down to cmake-3.1, so we can build on oldish, entreprise-grade distributions that only have cmake-3.1 (or at least, don't have up to cmake-3.8). Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> 2018-12-31 20:42:09 +03:00			`cmake_minimum_required(VERSION 3.1)`
cmake: add import config tests 2018-09-26 17:46:34 +03:00
			`project(DummyImport CXX)`

			`set(JSON_BuildTests OFF CACHE INTERNAL "")`
			`add_subdirectory(${nlohmann_json_source}`
			`${CMAKE_CURRENT_BINARY_DIR}/nlohmann_json)`

			`add_executable(with_namespace_target main.cpp)`
			`target_link_libraries(with_namespace_target nlohmann_json::nlohmann_json)`

			`add_executable(without_namespace_target main.cpp)`
			`target_link_libraries(without_namespace_target nlohmann_json)`