如何在ubuntu中安装SFML

How to install SFML in ubuntu?

本文关键字：安装 SFML ubuntu      更新时间：2023-10-16

我下载了SFML，然后复制了usr/local/include/中的所有头文件，并复制了usr/local/lib/中的所有库。

我有一个文件名为main.cpp在桌面，我想编译。

首先我这样做:-

g++ -c main.cpp

之后，当我尝试这样做:-

g++ main.o -o sfml-app -lsfml-graphics -lsfml-window -lsfml-system

它给了我:-

/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_action@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_list_entry_get_next@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_unref@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_list_entry_get_name@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_enumerate_unref@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_unref@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_new@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_receive_device@LIBUDEV_183'
/usr/local/lib/libsfml-graphics.so: undefined reference to `std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_devnode@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_enable_receiving@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_enumerate_new@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_get_fd@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_unref@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_property_value@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_filter_add_match_subsystem_devtype@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_enumerate_get_list_entry@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_enumerate_scan_devices@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_enumerate_add_match_subsystem@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_syspath@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_sysattr_value@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_monitor_new_from_netlink@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_new_from_syspath@LIBUDEV_183'
/usr/local/lib/libsfml-window.so: undefined reference to `udev_device_get_parent_with_subsystem_devtype@LIBUDEV_183'

我已经正确安装了所有必需的依赖项:https://github.com/SFML/SFML/wiki/Tutorial%3A-Installing-SFML-dependencies

我是否错过了任何必需的步骤?

要在Ubuntu中安装它，首先在终端运行以下命令-

sudo apt-get install libsfml-dev

确保你已经有了编译器(GCC)，如果没有，那么使用

安装它
sudo apt-get install build-essential

然后创建一个简单的SFML应用程序来测试这个

#include <SFML/Graphics.hpp>
int main(int argc, char const *argv[])
{
    sf::RenderWindow window(sf::VideoMode(200,200), "Hello From SFML");
    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Magenta);
    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if(event.type == sf::Event::Closed){
                window.close();
            }
        }
        window.clear();
        window.draw(shape);
        window.display();
        
    }
    return 0;
}

现在在repo中创建与main.cpp相同的makefile 

compile:./main.cpp
    g++ -c ./main.cpp
    g++ main.o -o app -lsfml-graphics -lsfml-window -lsfml-system
run:
    ./app
现在运行以下命令 编译它
make compile

，最后运行以下命令

make run

仅仅因为你已经安装了依赖项并不意味着你正在使用它们。

undefined reference to `udev_device_get_action@LIBUDEV_183'

提到udev和LIBUDEV，我认为你需要链接到libdev。尝试在命令行中添加-ludev。

如果你粘贴了所有的链接错误，那么这可能会解决它。如果您只粘贴了前20个库，那么可能还需要链接到其他库。查看缺失的符号，找出它们来自哪个库，并添加它们。

/usr/local/lib/libsfml-graphics.so: undefined reference to `std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20'

不知道这是怎么回事。您可能需要链接到c++库?

无论如何，您应该看看为SFML项目设置makefile的说明:https://github.com/SFML/SFML/wiki/Tutorial%3A-Build-your-SFML-project-with-CMake

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