ip-sockets-cpp-lite/CMakeLists.txt at master · biaks/ip-sockets-cpp-lite · GitHub

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cmake_minimum_required(VERSION 3.12)
project(ip-sockets-cpp-lite)

# =============================================================================
# Options
# =============================================================================

option(IP_SOCKETS_CPP_LITE_BUILD_EXAMPLES "Build with examples" OFF)

# =============================================================================
# Output directories
# =============================================================================

# for initialise variables: CMAKE_INSTALL_INCLUDEDIR, CMAKE_INSTALL_LIBDIR, CMAKE_INSTALL_BINDIR
include(GNUInstallDirs)

# when this project is the root - set output to own bin/, otherwise inherit from parent
if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
  if(WIN32)
    foreach(OUTPUTCONFIG ${CMAKE_CONFIGURATION_TYPES})
      string(TOUPPER ${OUTPUTCONFIG} OUTPUTCONFIG)
      set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_SOURCE_DIR}/bin)
    endforeach()
  endif()
endif()

# =============================================================================
# Collect header files
# =============================================================================

# include all header files from current directory
#file(GLOB IP_SOCKETS_CPP_LITE_HEADERS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
# manual include header files
file(GLOB IP_SOCKETS_CPP_LITE_HEADERS
  "${CMAKE_CURRENT_SOURCE_DIR}/include/ip_address.h"
  "${CMAKE_CURRENT_SOURCE_DIR}/include/udp_socket.h"
  "${CMAKE_CURRENT_SOURCE_DIR}/include/tcp_socket.h"
)

# =============================================================================
# Main target
# =============================================================================

# it is header only target
add_library               (${PROJECT_NAME}     INTERFACE)
target_sources            (${PROJECT_NAME}     INTERFACE ${IP_SOCKETS_CPP_LITE_HEADERS})
target_include_directories(${PROJECT_NAME}     INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
                                                         $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/ip-sockets-lite>  )

# link pthreads on Linux (sockets use threads for examples and may be used in threaded apps)
if(NOT WIN32)
  find_package(Threads)
  target_link_libraries(${PROJECT_NAME} INTERFACE Threads::Threads)
endif()
# it was need to show header files of INTERFACE target in IDEs like Visual Studio 2015 with CMake < 3.0
#add_custom_target        (${PROJECT_NAME}-ide SOURCES   ${IP_SOCKETS_CPP_LITE_HEADERS})

# =============================================================================
# Install
# =============================================================================

install(TARGETS   ${PROJECT_NAME})
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/ip-sockets-lite)

# =============================================================================
# Examples
# =============================================================================

# include examples if the option is enabled
if(IP_SOCKETS_CPP_LITE_BUILD_EXAMPLES)
  add_subdirectory("./examples")
endif()