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cmake_minimum_required(VERSION 3.0)
if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
################################################################################
## DOCTEST
################################################################################
project(doctest VERSION 2.4.6 LANGUAGES CXX)
# Determine if doctest is built as a subproject (using add_subdirectory) or if it is the main project.
set(MAIN_PROJECT OFF)
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(MAIN_PROJECT ON)
endif()
option(DOCTEST_WITH_TESTS "Build tests/examples" ${MAIN_PROJECT})
option(DOCTEST_WITH_MAIN_IN_STATIC_LIB "Build a static lib (cmake target) with a default main entry point" ON)
option(DOCTEST_NO_INSTALL "Skip the installation process" OFF)
option(DOCTEST_USE_STD_HEADERS "Use std headers" OFF)
add_library(${PROJECT_NAME} INTERFACE)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
if(NOT CMAKE_VERSION VERSION_LESS 3.8)
target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_11)
endif()
set(doctest_parts_folder "${CMAKE_CURRENT_SOURCE_DIR}/doctest/parts")
set(doctest_folder "${CMAKE_CURRENT_SOURCE_DIR}/") # in order to have the mpi extension files, not included into the doctest.h single header
if(MAIN_PROJECT)
# use a special hidden version of the header which directly includes the 2 parts - proper reporting of file/line locations during dev
target_include_directories(${PROJECT_NAME} INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/scripts/development_only/>
$<BUILD_INTERFACE:${doctest_parts_folder}>
$<BUILD_INTERFACE:${doctest_folder}>)
# add a custom target that assembles the single header when any of the parts are touched
add_custom_command(
OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/doctest/doctest.h
DEPENDS
${doctest_parts_folder}/doctest_fwd.h
${doctest_parts_folder}/doctest.cpp
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/assemble_single_header.cmake
COMMENT "assembling the single header")
add_custom_target(assemble_single_header ALL DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/doctest/doctest.h)
else()
target_include_directories(${PROJECT_NAME} INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/>)
endif()
# hack to support building on XCode 6 and 7 - propagate the definition to everything
if(DEFINED DOCTEST_THREAD_LOCAL)
target_compile_definitions(${PROJECT_NAME} INTERFACE
DOCTEST_THREAD_LOCAL=${DOCTEST_THREAD_LOCAL})
endif()
if(DOCTEST_USE_STD_HEADERS)
target_compile_definitions(${PROJECT_NAME} INTERFACE DOCTEST_CONFIG_USE_STD_HEADERS)
endif()
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