logvisor/CMakeLists.txt

if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
  cmake_minimum_required(VERSION 3.10 FATAL_ERROR) # because of c++17
  project(nod VERSION 0.1)
  set(CMAKE_CXX_STANDARD 17)
  set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()

include (CMakePackageConfigHelpers)

add_subdirectory(fmt)

add_library(logvisor
            lib/logvisor.cpp
            include/logvisor/logvisor.hpp)

target_link_libraries(logvisor PUBLIC ${CMAKE_DL_LIBS} fmt)

target_include_directories(logvisor PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)

install(DIRECTORY include/logvisor DESTINATION include) 
install(DIRECTORY fmt/include/fmt DESTINATION include)

set(version_config_file "${PROJECT_BINARY_DIR}/logvisorConfigVersion.cmake")
set(config_file "${PROJECT_BINARY_DIR}/logvisorConfig.cmake")
set(config_install_dir "lib/cmake/logvisor")

# Associate target with export
install(
    TARGETS logvisor fmt
    EXPORT logvisorTargets
    ARCHIVE DESTINATION "lib"
    INCLUDES DESTINATION include  # This sets the INTERFACE_INCLUDE_DIRECTORIES property of the target.
)

# Install the target config files
install(
    EXPORT logvisorTargets
    NAMESPACE "logvisor::"
    DESTINATION "${config_install_dir}"
)

# Generate version config file
write_basic_package_version_file(
    "${version_config_file}"
    COMPATIBILITY SameMajorVersion
)

# Generate config file
configure_package_config_file(
    "Config.cmake.in"
    "${config_file}"
    INSTALL_DESTINATION "lib/cmake/logvisor"
)

# Install the config files
install(
    FILES "${config_file}" "${version_config_file}"
    DESTINATION ${config_install_dir}
)