在 Fedora 上设置 OpenGL
我一直在尝试为我的计算机设置(安装并获取正确的库),以便我可以开始图形编程。
我访问过 OpenGL 站点,发现它没有帮助。 我尝试了维基教科书的设置页面,但它有特定于 Debian 和 Debian 类系统的安装信息,我找不到 fedora 的相应内容。
我了解 C 和 python,如果可能的话更愿意使用 C 工作,我确实找到了 PyOpenGL.noarch 并使用 yum 安装了它。
我查找了其他几个网站,但没有找到太多,但我设法安装了 freeglut-devel
我检查并在 /usr/include/GL 文件夹中找到了 GL 库,但是当我尝试运行以下代码{取自wikibooks 网站本身,所以我假设它有效}:
#include <stdio.h> /* printf */
#include <GL/glut.h> /* glut graphics library */
/*
* Linux c console program
* gcc f.c -lglut
* ./a.out
* */
main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutCreateWindow("red 3D lighted cube");
printf("GL_VERSION = %s\n",glGetString(GL_VERSION) ); /* GL_VERSION = 2.1.2 NVIDIA 195.36.24 */
return 0;
}
当我执行 gcc -lglut filename.c
时,
我收到以下错误:
/usr/bin/ld: /usr/lib/gcc/i686-redhat-linux/4.6.1/../../../libglut.so: undefined reference to symbol 'glGetString'
/usr/bin/ld: note: 'glGetString' is defined in DSO /usr/lib/libGL.so.1 so try adding it to the linker command line
/usr/lib/libGL.so.1: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
而且我不知道该怎么做。
如果有基本的分步程序,我们将不胜感激,但如果有任何帮助,我们随时欢迎。
I've been trying to set up (Install and get the correct libraries) for my computer so I could start graphic programming.
I've visited the OpenGL site, and have found it unhelpful.
I tried the Wikibooks' Setting up page, but that has install info specific to Debian and Debian like systems and I couldn't find the corresponding stuff for fedora.
I know C and python and would prefer to work in C if possible, I did find PyOpenGL.noarch and installed it using yum.
I looked up a couple of other sites and didn't find much but I managed to Install freeglut-devel
I checked and found the GL libraries in /usr/include/GL folder but when I try to run the following code{taken from the wikibooks site itself, so I'm assuming it works}:
#include <stdio.h> /* printf */
#include <GL/glut.h> /* glut graphics library */
/*
* Linux c console program
* gcc f.c -lglut
* ./a.out
* */
main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutCreateWindow("red 3D lighted cube");
printf("GL_VERSION = %s\n",glGetString(GL_VERSION) ); /* GL_VERSION = 2.1.2 NVIDIA 195.36.24 */
return 0;
}
And when I do gcc -lglut filename.c
I get the following errors:
/usr/bin/ld: /usr/lib/gcc/i686-redhat-linux/4.6.1/../../../libglut.so: undefined reference to symbol 'glGetString'
/usr/bin/ld: note: 'glGetString' is defined in DSO /usr/lib/libGL.so.1 so try adding it to the linker command line
/usr/lib/libGL.so.1: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
And I have no Idea what to do.
A basic step-by-step procedure would be much appreciated but if any help is always welcome.
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尝试将
-lGL
添加到用于编译它的命令行(这就是错误消息告诉您要做的事情)。这个问题还建议您还需要
-lGLU
。此外,我会将这些库放在使用它们的源文件之后,因此:
而不是:
有关为什么在 fedora 上收到此消息的更多信息 此处,但基本修复是显式链接缺少的库。
Try adding
-lGL
to the command line you use to compile it (that's what the error message is telling you to do).This question also suggests that you'll need
-lGLU
as well.Additionally, I would put the libraries after the source files that use them, so:
Instead of:
There is some more information about why you get this message on fedora here, but the basic fix is to explicitly link the missing library.