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POHaving many glut errors
 

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  1. POHaving many glut errors
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    <p>I have found this code and wanted to try on my machine : </p> <pre><code>#include &lt;GL/freeglut.h&gt; static void RenderSceneCB() { glClear(GL_COLOR_BUFFER_BIT); glutSwapBuffers(); } static void InitializeGlutCallbacks() { glutDisplayFunc(RenderSceneCB); } int main(int argc, char** argv) { glutInit(&amp;argc, argv); glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGBA); glutInitWindowSize(1024, 768); glutInitWindowPosition(100, 100); glutCreateWindow("Tutorial 01"); InitializeGlutCallbacks(); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glutMainLoop(); return 0; } </code></pre> <p>And I got these errors : </p> <blockquote> <p>g++ tutorial01.cpp </p> <p>/tmp/ccOoXvqJ.o: In function `RenderSceneCB()':</p> <p>tutorial01.cpp:(.text+0xa): undefined reference to `glClear'</p> <p>tutorial01.cpp:(.text+0xf): undefined reference to `glutSwapBuffers'</p> <p>/tmp/ccOoXvqJ.o: In function `InitializeGlutCallbacks()':</p> <p>tutorial01.cpp:(.text+0x1f): undefined reference to `glutDisplayFunc'</p> <p>/tmp/ccOoXvqJ.o: In function `main': tutorial01.cpp:(.text+0x43):</p> <p>undefined reference to `glutInit' tutorial01.cpp:(.text+0x4d):</p> <p>undefined reference to `glutInitDisplayMode'</p> <p>tutorial01.cpp:(.text+0x5c): undefined reference to</p> <p>`glutInitWindowSize' tutorial01.cpp:(.text+0x6b): undefined reference</p> <p>to `glutInitWindowPosition' tutorial01.cpp:(.text+0x75): undefined</p> <p>reference to `glutCreateWindow' tutorial01.cpp:(.text+0x8b): undefined</p> <p>reference to `glClearColor' tutorial01.cpp:(.text+0x90): undefined</p> <p>reference to `glutMainLoop' collect2: ld returned 1 exit status</p> </blockquote> <p>I think I have successfully installed freeglut3-dev on my machine. Can you tell me why I'm getting so many errors? I'm using Ubuntu 12.04.</p>
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    1. COYou don't just have to install glut, you also have to *link* with it's libraries. You should add something to your question about how you are building your program, since that's where the error is likely to be.
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      1. POHaving many glut errors
      1. USjohn
    2. COYes I had to add "-lglut". Thanks.
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