问题描述
我最近安装了SFML 2.1，并尝试从终端编译和运行，而不是Xcode，他们在他们的网站上的示例程序。
I have recently installed SFML 2.1 and am trying to compile and run from the terminal, NOT Xcode, the sample program that they have on their website at http://www.sfml-dev.org/tutorials/2.0/start-linux.php.
Path to where I installed SFML:
/Users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1-osx-gcc-universal
但是，我一直收到以下错误：
However, I keep getting the error of:
Undefined symbols for architecture x86_64:
"sf::String::String(char const*, std::__1::locale const&)", referenced from:
_main in window-48cb4a.o
在google之后，我遇到了这个问题：
After googling it, I came across this question: SFML 2.1 RenderWindow linking error
在接受的答案，人说如果我想使用g ++，我不得不下载GCC版本。所以，我继续下载GCC - 通用32 + 64位（OS X 10.5+）版本，然后按照说明在linux上安装和编译SFML，因为没有mac（）通过执行以下操作：
In the accepted answer, the person said that if I wanted to use g++, I had to download the "GCC" version. So, I proceeded to download the GCC - universal 32+64 bits (OS X 10.5+) version and then followed the instructions for installing and compiling SFML on linux, since there were none for mac (http://www.sfml-dev.org/tutorials/2.0/start-linux.php) by doing the following:
由于我在非标准位置安装了SFML，我告诉我的编译器在哪里找到头文件，如：
Since I had installed SFML in a non-standard location, I told my compiler where to find the header files like so:
-I /Users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1-osx-gcc-universal/Frameworks/SFML.framework/Headers
我还必须告诉我的编译器在哪里找到SMFL库：
I also had to tell my compiler where to find the SMFL libraries:
-L /Users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1-osx-gcc-universal/lib
我还需要告诉库加载器从哪里找到SFML库：
I needed to also tell the library loader where to find the SFML libraries from:
export LD_LIBRARY_PATH=/Users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1-osx-gcc-universal/lib
然后，我把sfml-audio.framework，sfml-window.framework，sfml-graphics.framework，sfml-network.framework ，和我的框架目录（/ Library / Frameworks）中的sfml-system.framework。
Then, I put the sfml-audio.framework, sfml-window.framework, sfml-graphics.framework, sfml-network.framework, and sfml-system.framework in my Frameworks directory (/Library/Frameworks).
最后，我试图以下列方式编译我的程序：
Finally, I tried to compile my program in the following ways:
-
g ++ window.cpp -I /Users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1 -osx-gcc-universal / Frameworks / SFML.framework / Headers / SFML -L /users/brendanbusey/Desktop/C++_Code/SMFL/SFML-2.1-osx-gcc-universal/lib -framework sfml-graphics -framework sfml-window -framework sfml-system
g ++ window.cpp -framework sfml-graphics -framework sfml-window -framework sfml-system
。我继续google的错误，但我所得到的是人们使用Xcode而不是终端的问题。任何帮助将非常感谢！
But, I keep getting the same error. I have continued to google the error, but all I keep getting are questions where people are using Xcode and not the terminal. Any help would be greatly appreciated!
推荐答案
我想出来了！首先，正如Joachim Pileborg指出的，我需要安装clang版本的SFML for mac，因为我使用g ++来编译它是伪装的clang ++，正如Joachim Pileborg也指出的。接下来，我必须再次阅读有关在Linux中设置SFML的说明（）。
I figured it out at last! First off, as Joachim Pileborg pointed out, I need to install the clang version of SFML for mac since I was using g++ to compile which is clang++ in disguise, as Joachim Pileborg also pointed out. Next, I had to go through the instructions again for setting up SFML with Linux (http://www.sfml-dev.org/tutorials/2.0/start-linux.php).
但是，蛋糕上的结冰是当我阅读这个问题：
However, the icing on the cake was when I read this question:
...和这个问题：
...这让我想：也许我应该尝试移动我的freetype.framework文件夹（可以在extlibs目录中找到）放入我的/ Library / Frameworks目录。一旦我这样做和编译使用
...which got me thinking: maybe I should try moving my freetype.framework folder (which can be found in the extlibs directory) into my /Library/Frameworks directory. Once I did this and compiled using
g++ window.cpp -framework sfml-graphics -framework sfml-window -framework sfml-system
它编译并运行成功！我现在很高兴！
It compiled and ran successfully!!! I am very happy now!
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