如何修复当前的 openGL 错误，我的 cmakelist 可能是我的问题

Question

我已经包含了库并且我的所有语法都是正确的，但是我收到了这个错误。

Undefined symbols for architecture arm64:
  "_glBegin", referenced from:
      triangle(float*, float*, float*) in main.cpp.o
  "_glClear", referenced from:
      displayTriangle() in main.cpp.o
  "_glClearColor", referenced from:
      _main in main.cpp.o
  "_glColor3f", referenced from:
      drawTetrahedron(int) in main.cpp.o
  "_glEnable", referenced from:
      _main in main.cpp.o
  "_glEnd", referenced from:
      triangle(float*, float*, float*) in main.cpp.o
  "_glFlush", referenced from:
      displayTriangle() in main.cpp.o
  "_glLoadIdentity", referenced from:
      displayTriangle() in main.cpp.o
  "_glMatrixMode", referenced from:
      reshapeWindow(int, int) in main.cpp.o
  "_glOrtho", referenced from:
      reshapeWindow(int, int) in main.cpp.o
  "_glVertex3fv", referenced from:
      triangle(float*, float*, float*) in main.cpp.o
  "_glViewport", referenced from:
      reshapeWindow(int, int) in main.cpp.o
  "_glutCreateWindow", referenced from:
      _main in main.cpp.o
  "_glutDisplayFunc", referenced from:
      _main in main.cpp.o
  "_glutInit", referenced from:
      _main in main.cpp.o
  "_glutInitDisplayMode", referenced from:
      _main in main.cpp.o
  "_glutInitWindowSize", referenced from:
      _main in main.cpp.o
  "_glutMainLoop", referenced from:
      _main in main.cpp.o
  "_glutPostRedisplay", referenced from:
      reshapeWindow(int, int) in main.cpp.o
  "_glutReshapeFunc", referenced from:
      _main in main.cpp.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

我觉得我的 cmakefile 是我的问题，但我不知道从哪里开始。

Answer 1

请提供更多详细信息，例如 CMakeLists.txt 的相关部分，以获取更多信息并更快地从社区获得帮助。

现在，查看错误日志，您似乎 cross-compiling 使用 arm-based 编译器的源文件。

错误消息“ld: symbol(s) not found for architecture arm64”在我看来是一个链接器问题，你应该在 find_package() 中进行链接调用 CMakeLists.txt对于 OpenGL。

因此，首先，您应该首先执行两个步骤，看看它是否能解决您的问题：

1.确保 CMake 构建系统指向正确的编译器工具链路径（此处为 arm 编译器）。

同样参考CMake官网： https://cmake.org/cmake/help/book/mastering-cmake/chapter/Cross%20Compiling%20With%20CMake.html

2。确保您链接的是 OpenGL

find_package（需要 OpenGL）

target_include_directories(your_executable_name PUBLIC ${OPENGL_INCLUDE_DIR})
target_link_libraries(your_executable_name PUBLIC ${OPENGL_LIBRARIES})

如何修复当前的 openGL 错误，我的 cmakelist 可能是我的问题

How do I fix my current openGL error, my cmakelist may be my issue

c++

opengl

glut

cmake