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我已经包含了库〈GLUT/glut.h〉，并且所有语法都是正确的，但是我还是收到了这个错误。

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。