macos 架构 x86_64 的未定义符号：“_glutInit”，引用自：main.o 中的 _main / Mac 上的 Netbeans
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Undefined symbols for architecture x86_64:"_glutInit", referenced from:_main in main.o / Netbeans on Mac
提问by Andreu Boada de Atela
I′m a beginner with OpenGL and "my" first program is this Sierpinski Gasket. I′m using Netbeans on my MacBook Pro and I believe I have the libraries installed but maybe they are not linked correctly.
我是 OpenGL 的初学者，“我的”第一个程序就是这个谢尔宾斯基垫片。我在 MacBook Pro 上使用 Netbeans，我相信我已经安装了这些库，但可能它们没有正确链接。
#include <iostream>
#include <stdio.h>
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
#include <OpenGL/glext.h>
void myinit(){
glClearColor(1.0,1.0,1.0,1.0);
glColor3f(1.0,0.0,0.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,50.0,0.0,50.0);
glMatrixMode(GL_MODELVIEW);
}
void display(){
GLfloat vertices[3][2]={{0.0,0.0},{25.0,50.0},{50.0,0.0}};
int i, j, k;
int rand();
GLfloat p[2]={7.5,5.0};
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_POINTS);
for(k=0; k<5000; k++){
j=rand()*3;
p[0]=(p[0]+vertices[j][0])/2.0;
p[1]=(p[1]+vertices[j][1])/2.0;
glVertex2fv(p);
}
glEnd();
glFlush();
}
int main(int argc, char** argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(500,500);
glutInitWindowPosition(0,0);
glutCreateWindow("Sierpinski Gasket");
glutDisplayFunc(display);
myinit();
glutMainLoop();
}
Here are the compilation errors:
以下是编译错误：
Undefined symbols for architecture x86_64:
"_glutInit", referenced from:
_main in main.o"_glutInitDisplayMode", referenced from:
_main in main.o"_glutInitWindowSize", referenced from:
_main in main.o"_glutInitWindowPosition", referenced from:
_main in main.o"_glutCreateWindow", referenced from:
_main in main.o"_glutDisplayFunc", referenced from:
_main in main.o"_glutMainLoop", referenced from:
_main in main.old: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make[2]: *[dist/Debug/GNU-MacOSX/sierpinski] Error 1
make[1]: *[.build-conf] Error 2
make: *[.build-impl] Error 2
体系结构 x86_64 的未定义符号：
“_glutInit”，引用自：
_main in main.o“_glutInitDisplayMode”，引用自：
_main in main.o“_glutInitWindowSize”，引用自：
_main in main.o“_glutInitWindowPosition”，引用自：
_main in main.o“_glutCreateWindow”，引用自：
_main in main.o“_glutDisplayFunc”，引用自：
_main in main.o“_glutMainLoop”，引用自：
_main in main.old：找不到架构 x86_64 的符号
collect2: ld 返回 1 个退出状态
make[2]: *[dist/Debug/GNU-MacOSX/sierpinski] 错误 1
make[1]: *[.build-conf] 错误 2
制作：*[.build-impl] 错误 2
回答by
You need to link the GLUT framework. In Project Properties > Linker > Command Line > Aditional Options, specify
您需要链接 GLUT 框架。在项目属性 > 链接器 > 命令行 > 附加选项中，指定
-framework GLUT
回答by Randhir Singh
Slight correction in your code:
稍微更正您的代码：
j = rand() % 3;
and not rand() * 3;. That gives seg fault for obvious reasons.
而不是rand() * 3;。由于显而易见的原因，这会导致段错误。
