将sfml与cmake链接（Windows MinGW） [英] linking sfml with cmake (Windows MinGW)

问题描述

我似乎无法使用 cmake 将 SFML 链接到我的可执行文件。

I can't seem to link SFML to my executable using cmake.

CMakeLists.txt：

cmake_minimum_required(VERSION 3.0.0)
project(Tut3)

set(LIBS_DIR ~/../../Libraries)

add_executable(Tut3 main.cpp)

set(CMAKE_MODULE_PATH ${LIBS_DIR}/sfml/cmake/Modules)
find_package(SFML REQUIRED system window graphics)
target_link_libraries(Tut3 ${SFML_LIBRARIES})

运行cmake时出现错误：

CMake错误在C：/Libraries/sfml/cmake/Modules/FindSFML.cmake：355
（消息）：找不到SFML（丢失：SFML_SYSTEM_LIBRARY
SFML_WINDOW_LIBRARY SFML_GRAPHICS_LIBRARY）

CMake Error at C:/Libraries/sfml/cmake/Modules/FindSFML.cmake:355 (message): Could NOT find SFML (missing: SFML_SYSTEM_LIBRARY SFML_WINDOW_LIBRARY SFML_GRAPHICS_LIBRARY)

调用堆栈（最近调用一次）：CMakeLists.txt：9（find_package）

Call Stack (most recent call first): CMakeLists.txt:9 (find_package)

sfml目录包含一个32位的 MinGW 编译的 sfml 存储库。我正在使用Windows。我使用的cmake命令是：

the sfml directory contains a 32bit MinGW compiled sfml repository. I am using Windows. The cmake command I use is:

cmake -G "MinGW Makefiles" ..dir..

推荐答案

查找SFML的模块与它自己的位置无关。取而代之的是，它将尝试一些常见的路径（非Windows系统）以及一些特定的变量来尝试查找实际的库。

The module to look for SFML won't look relative to its own position. Instead, it will try a few common paths (non-Windows systems) in addition to a few specific variables to try and find the actual library.

要解决此问题，您可以应该做两件事：

To solve this, you should do two things:

• 将 FindSFML.cmake 脚本移动到子目录您自己的项目，例如 cmake / FindSFML.cmake 并相应地调整 CMAKE_MODULE_PATH 值。


• 添加一个新的CMake变量 SFML_ROOT 指向安装SFML的目录（在您的情况下 C：/ Libraries / sfml ） 。不应将其硬编码在 CMakeLists.txt 文件中，而应在调用CMake时传递一次（即 cmake -DSFML_ROOT = C：/。）。 。



• Move the FindSFML.cmake script to a sub directory of your own project, e.g. cmake/FindSFML.cmake and adjust the CMAKE_MODULE_PATH value accordingly.
• Add a new CMake variable SFML_ROOT pointing to the directory where you installed SFML (in your case C:/Libraries/sfml). This shouldn't be hardcoded in the CMakeLists.txt file and instead be passed once when invoking CMake (i.e. cmake -DSFML_ROOT=C:/...; this is saved in the cache).

此外，...的结构还存在一些问题您的 CMakeLists.txt 。您应该改用以下方法：

Also there are a few problems with the structure of your CMakeLists.txt. You should use this instead:

cmake_minimum_required(VERSION 3.0.0)
project(Tut3)

set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake) # Tell CMake where to find the module
find_package(SFML REQUIRED COMPONENTS graphics window system) # Look for SFML

include_directories(${SFML_INCLUDE_DIR}) # You forgot this line above; add SFML's include dir
add_executable(Tut3 main.cpp) # Define the target

target_link_libraries(Tut3 ${SFML_LIBRARIES} ${SFML_DEPENDENCIES}) # Link SFML and dependencies

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