如何在cmake中链接静态库

Question

我正在尝试在我的项目中链接GLFW。有我的项目结构的屏幕截图：

这是我的CMakeLists.txt：

cmake_minimum_required(VERSION 3.15)
project(testo)

set(CMAKE_CXX_STANDARD 17)

add_executable(testo main.cpp)
add_library(glfw3 STATIC main.cpp)

include_directories(lib/glfw/include/)

find_library(GLFW glfw3 lib/glfw/lib)
target_link_libraries(testo LINK_PUBLIC ${GLFW})

Howewer，当我尝试在clion中运行项目时，它给了我错误：

====================[ Build | testo | Debug ]===================================
"C:\Program Files\JetBrains\CLion 2019.2.5\bin\cmake\win\bin\cmake.exe" --build C:\Users\Student\testo\cmake-build-debug --target testo -- -j 2
[ 50%] Linking CXX executable testo.exe
CMakeFiles\testo.dir/objects.a(main.cpp.obj): In function `main':
C:/Users/Student/testo/main.cpp:5: undefined reference to `glfwInit'
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[3]: *** [CMakeFiles\testo.dir\build.make:87: testo.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles\Makefile2:77: CMakeFiles/testo.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:84: CMakeFiles/testo.dir/rule] Error 2
mingw32-make.exe: *** [Makefile:117: testo] Error 2

Answer 1

这里有一些github example。
这里是一些question you are duplicating。

基于此，它应如下所示：

cmake_minimum_required(VERSION 3.15)
project(testo)

set(CMAKE_CXX_STANDARD 17)

find_package(GLEW REQUIRED)

add_executable(testo main.cpp)
target_link_libraries(testo PUBLIC ${GLEW_LIBRARIES})
target_include_directories(testo PUBLIC ${GLEW_INCLUDE_DIRS})

Answer 2

我认为这与linux在lib文件名中添加"lib***.a" [pre / post]修复程序有关。

尝试像将lib/glfw/lib一样将link_directories()目录添加到include_dicrectories()。

此外，add_library()指定您正在尝试自己编译glfw3，但是您尝试做的只是与之链接。我已为您删除了它。

cmake_minimum_required(VERSION 3.15)
project(testo)

set(CMAKE_CXX_STANDARD 17)

add_executable(testo main.cpp)

include_directories(lib/glfw/include/)
link_directories(lib/glfw/lib)

target_link_libraries(testo LINK_PUBLIC glfw3)