# ****************************************************************************** # Copyright 2017-2018 Intel Corporation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # ****************************************************************************** # Enable ExternalProject CMake module include(ExternalProject) #------------------------------------------------------------------------------ # Download json #------------------------------------------------------------------------------ SET(JSON_GIT_REPO_URL https://github.com/nlohmann/json) SET(JSON_GIT_LABEL v3.1.1) # The 'BUILD_BYPRODUCTS' argument was introduced in CMake 3.2. if (${CMAKE_VERSION} VERSION_LESS 3.2) ExternalProject_Add( ext_json GIT_REPOSITORY ${JSON_GIT_REPO_URL} GIT_TAG ${JSON_GIT_LABEL} # Disable install step BUILD_COMMAND "" INSTALL_COMMAND "" UPDATE_COMMAND "" # cmake does not allow calling cmake functions so we call a cmake script in the Module # directory. PATCH_COMMAND ${CMAKE_COMMAND} -P ${CMAKE_MODULE_PATH}patch_json.cmake ) else() ExternalProject_Add( ext_json GIT_REPOSITORY ${JSON_GIT_REPO_URL} GIT_TAG ${JSON_GIT_LABEL} # Disable install step BUILD_COMMAND "" INSTALL_COMMAND "" UPDATE_COMMAND "" # cmake does not allow calling cmake functions so we call a cmake script in the Module # directory. PATCH_COMMAND ${CMAKE_COMMAND} -P ${CMAKE_MODULE_PATH}patch_json.cmake ) endif() #------------------------------------------------------------------------------ get_filename_component( JSON_INCLUDE_DIR "${EXTERNAL_PROJECTS_ROOT}/ext_json-prefix/src/ext_json/include" ABSOLUTE) set(JSON_INCLUDE_DIR "${JSON_INCLUDE_DIR}" PARENT_SCOPE)