Question

我基本上是想在CLion中创建一个使用CMake的SFML项目。

我首先下载了已经构建了.dylib个文件的SFML 2.2。它说要在usr/local/lib和usr/local/include中安装它们，但它们不存在，所以我创建它们然后将文件放在那里。

然后我打开了CLion，创建了一个子目录cmake_modules，将FindSFML.cmake文件放在里面，并在根项目目录中放置了这些文件：

的main.cpp

#include <SFML/Graphics.hpp>

int main()
{
    sf::err() << "Hello, World!" << std::endl;
    return 0;
}

的CMakeLists.txt ：

cmake_minimum_required(VERSION 3.2)
project(HelloWorld)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)
add_executable(HelloWorld ${SOURCE_FILES})

set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake_modules" ${CMAKE_MODULE_PATH})

find_package(SFML COMPONENTS graphics window system REQUIRED)
include_directories(${SFML_INCLUDE_DIR})

target_link_libraries(HelloWorld ${SFML_Libraries})

问题在于，当我尝试构建项目时，出现以下错误：

Undefined symbols for architecture x86_64:
  "sf::err()", referenced from:
      _main in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我尝试过寻找解决方案，但似乎没有一个能够解决问题。我把文件放在错误的位置，还是忘记了一些导入CMake设置？我知道用Xcode设置SFML会更容易，但我更愿意尽可能使用CLion。

Answer 1

Ok, so I made an entirely new project, ran ->whereRaw('requests.updated_at > $last_check') on my terminal to make xcode-select --install a directory that gets searched by the compiler, downloaded SFML 2.3 instead of 2.2, decided to use the /usr/local/ file shipped with SFML, and made my FindSFML.cmake file look like so:

CmakeLists.txt

This compiled and ran the following code in CLion:

cmake_minimum_required(VERSION 3.2)
project(SFMLTest)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)
add_executable(SFMLTest ${SOURCE_FILES})

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "~/SFML-2.3/cmake/Modules/")
find_package(SFML REQUIRED graphics window system)
if (SFML_FOUND)
    include_directories(${SFML_INCLUDE_DIR})
    target_link_libraries(SFMLTest ${SFML_LIBRARIES})
endif(SFML_FOUND)

I don't know what exactly fixed everything, but I'm just glad it did. Hopefully this helps anyone else who's in a similar jam.

Answer 2

SFML 2.5 及更高版本采用了更现代的方法，设置 cmake 更容易。

示例 CMakeLists.txt

cmake_minimum_required(VERSION 3.1)

project(SFMLTest)

find_package(SFML 2.5 COMPONENTS graphics audio REQUIRED)
add_executable(SFMLTest main.cpp)
target_link_libraries(SFMLTest sfml-graphics sfml-audio)

注意：

<块引用>

不再需要设置 FindSFML.cmake 或 SFML_ROOT 等

SFML_LIBRARIES、SFML_DEPENDENCIES 和 SFML_INCLUDE_DIR 不存在没有了

更多信息https://en.sfml-dev.org/forums/index.php?topic=24070.0

Answer 3

对于通过brew下载SFML的其他人，我设法通过将此添加到我的CMakeLists.txt来解决此问题

set(SFML_ROOT /usr/local/lib)

未找到SFML - CLion / Cmake

3 个答案: