cmake学习06 - 链接第三方库

链接第三方库

windows下下载 https://www.libsdl.org/release/SDL2-devel-2.0.9-VC.zip

解压后工程目录如下：

cmake3/
|-- build
|   |-- airplane.bmp
|   |-- auto_build.bat
|   `-- nature.bmp
|-- cmake3.cpp
|-- CMakeLists.txt
|-- Readme.txt
`-- SDL2-2.0.9
    |-- BUGS.txt
    |-- COPYING.txt
    |-- docs
    |   |-- doxyfile
    |   |-- README-android.md
    |   |-- README-cmake.md
    |   |-- README-directfb.md
    |   |-- README-dynapi.md
    |   |-- README-emscripten.md
    |   |-- README-gesture.md
    |   |-- README-hg.md
    |   |-- README-ios.md
    |   |-- README-linux.md
    |   |-- README-macosx.md
    |   |-- README.md
    |   |-- README-nacl.md
    |   |-- README-pandora.md
    |   |-- README-platforms.md
    |   |-- README-porting.md
    |   |-- README-psp.md
    |   |-- README-raspberrypi.md
    |   |-- README-touch.md
    |   |-- README-wince.md
    |   |-- README-windows.md
    |   `-- README-winrt.md
    |-- include
    |   |-- begin_code.h
    |   |-- close_code.h
    |   |-- SDL_assert.h
    |   |-- SDL_atomic.h
    |   |-- SDL_audio.h
    |   |-- SDL_bits.h
    |   |-- SDL_blendmode.h
    |   |-- SDL_clipboard.h
    |   |-- SDL_config_android.h
    |   |-- SDL_config.h
    |   |-- SDL_config.h.cmake
    |   |-- SDL_config.h.in
    |   |-- SDL_config_iphoneos.h
    |   |-- SDL_config_macosx.h
    |   |-- SDL_config_macosx.h.orig
    |   |-- SDL_config_minimal.h
    |   |-- SDL_config_pandora.h
    |   |-- SDL_config_psp.h
    |   |-- SDL_config_windows.h
    |   |-- SDL_config_winrt.h
    |   |-- SDL_config_wiz.h
    |   |-- SDL_copying.h
    |   |-- SDL_cpuinfo.h
    |   |-- SDL_egl.h
    |   |-- SDL_endian.h
    |   |-- SDL_error.h
    |   |-- SDL_events.h
    |   |-- SDL_filesystem.h
    |   |-- SDL_gamecontroller.h
    |   |-- SDL_gesture.h
    |   |-- SDL.h
    |   |-- SDL_haptic.h
    |   |-- SDL_hints.h
    |   |-- SDL_joystick.h
    |   |-- SDL_keyboard.h
    |   |-- SDL_keycode.h
    |   |-- SDL_loadso.h
    |   |-- SDL_log.h
    |   |-- SDL_main.h
    |   |-- SDL_messagebox.h
    |   |-- SDL_mouse.h
    |   |-- SDL_mutex.h
    |   |-- SDL_name.h
    |   |-- SDL_opengles2_gl2ext.h
    |   |-- SDL_opengles2_gl2.h
    |   |-- SDL_opengles2_gl2platform.h
    |   |-- SDL_opengles2.h
    |   |-- SDL_opengles2_khrplatform.h
    |   |-- SDL_opengles.h
    |   |-- SDL_opengl_glext.h
    |   |-- SDL_opengl.h
    |   |-- SDL_pixels.h
    |   |-- SDL_platform.h
    |   |-- SDL_power.h
    |   |-- SDL_quit.h
    |   |-- SDL_rect.h
    |   |-- SDL_render.h
    |   |-- SDL_revision.h
    |   |-- SDL_rwops.h
    |   |-- SDL_scancode.h
    |   |-- SDL_sensor.h
    |   |-- SDL_shape.h
    |   |-- SDL_stdinc.h
    |   |-- SDL_surface.h
    |   |-- SDL_system.h
    |   |-- SDL_syswm.h
    |   |-- SDL_test_assert.h
    |   |-- SDL_test_common.h
    |   |-- SDL_test_compare.h
    |   |-- SDL_test_crc32.h
    |   |-- SDL_test_font.h
    |   |-- SDL_test_fuzzer.h
    |   |-- SDL_test.h
    |   |-- SDL_test_harness.h
    |   |-- SDL_test_images.h
    |   |-- SDL_test_log.h
    |   |-- SDL_test_md5.h
    |   |-- SDL_test_memory.h
    |   |-- SDL_test_random.h
    |   |-- SDL_thread.h
    |   |-- SDL_timer.h
    |   |-- SDL_touch.h
    |   |-- SDL_types.h
    |   |-- SDL_version.h
    |   |-- SDL_video.h
    |   `-- SDL_vulkan.h
    |-- lib
    |   |-- x64
    |   |   |-- SDL2.dll
    |   |   |-- SDL2.lib
    |   |   |-- SDL2main.lib
    |   |   `-- SDL2test.lib
    |   `-- x86
    |       |-- SDL2.dll
    |       |-- SDL2.lib
    |       |-- SDL2main.lib
    |       `-- SDL2test.lib
    |-- README-SDL.txt
    |-- README.txt
    `-- WhatsNew.txt

备注：这里先讨论Windows下的CMake的使用方法，Linux请参考类似的做法

cmake3/CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(cmake3)

message(${CMAKE_SOURCE_DIR})
message(${PROJECT_SOURCE_DIR})


#add all source current dir
aux_source_directory(. DIR_SRCS)

include_directories(${CMAKE_SOURCE_DIR}/SDL2-2.0.9/include)

link_directories(${CMAKE_SOURCE_DIR}/SDL2-2.0.9/lib/x64)
  
add_executable(cmake3 MACOSX_BUNDLE ${DIR_SRCS})

target_link_libraries(cmake3 SDL2 SDL2main)

通过 include_directories 指定SDL2库所在的头文件的位置

通过 link_directories 指定SDL2库所在的库文件的位置

通过 target_link_libraries 指定参与链接的库