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macos - Compiling a C program that uses OpenGl in Mac OS X

I am trying to compile a C program for my CS class. I have Command Line tools installed on my Mac, so I probably have OpenGL. The program description was made for Ubuntu and it says for me to compile using:

gcc -Wall -ansi -pedantic -O2 main.o graphic.o imagem.o io.o -o ep2 -lGL -lGLU -lglut

I ran that and it said:

ld: library not found for -lGL

What flags should I use? What do I do?

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In MacOS X you're not using libraries to include system level APIs, but Frameworks. The proper command line to compile this program would be

gcc -Wall -ansi -pedantic -O2 
    main.o graphic.o imagem.o io.o 
    -o ep2 
    -framework OpenGL -lGLU -lglut

Note that GLU is probably part of the OpenGL framework as well. And it may be required to install GLUT first.


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