Anyway, back to my question. I'm trying to get OpenGL support into my program. Right now all I'm trying to do is get it to open a black window and wait until I hit escape, when it will quit. When I compile the source code, it gives me no errors. But when it goes to link the objects and make a executable, I get all these errors that all the OpenGL calls are undefined. I just can't understand for the life of me how to get this to work. I have the gl.h and glu.h files, and since it compiles it must be finding the headers. Has anyone ever tried this, or has any ideas to help me?

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10 PRINT "HOME"
20 PRINT "SWEET"
30 GOTO 10

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10 PRINT "HOME"
20 PRINT "SWEET"
30 GOTO 10

First of all - if your program is using a different calling convention than the library the header files describes, you need to change it.

(If the library was compiled as C and your program is C++, put extern "C" { } around the entries in the .h files)

Also - make sure you are linking the library. The order does hold significance for some linkers in what files are passed - try passing it more than once and on the end and beginning and all over.

I have SOME experience with C, almost nill with C++, and way too much with Java. My @$#\% CS program at school really leans on Java for entry level classes. $\%#@ ruins everyone who goes through them. IF YOU ARE THINKING OF BEING A CS MAJOR, DO NOT GOTO OREGON STATE UNIVERSITY!!! Of cource, they make up for it with great engineering majors. Anyway, most of the C experience has been through a GUI called Code Warrior, which I HAD to use to turn in my assignments. Now I've switched to a straight text editor with a little bit of color highlighting, so I'm doing all my own compiling and linking by hand.

With SDL, when you compile a program, they say you should use this command sequence:

gcc <source> -o <destination> `sdl-config --cflags --libs`

That last part returns linking and other such commands. This is where I think I'm getting hung up. Anyway, I really need specific help, not just general advice.

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10 PRINT "HOME"
20 PRINT "SWEET"
30 GOTO 10

For linux, jed owns j00.

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10 PRINT "HOME"
20 PRINT "SWEET"
30 GOTO 10

sdl-config --cflags --libs

Post what it returns.

That is all.

Here is what I get when I run sdl-config --cflags --libs

-I/usr/local/include -I/usr/local/include/SDL -Dmain=SDL_main -I/usr/include/mingw -DWIN32 -Uunix
-L/usr/local/lib -lmingw32 -lSDLmain -mwindows -mno-cygwin

I've also recently seen an example of how to compile this program I want to compile under Linux\SDL. I added an extra couple of options:

-lGL -lGLU

When I added that, I get a new error. Now it says it cannot find -lGL. Don't know what to do.
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10 PRINT "HOME"
20 PRINT "SWEET"
30 GOTO 10

This message has been edited by demonk on August 06, 2001 at 10:15 AM

quote:

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Originally posted by RenegadeSnark:
Code Warrior is arguably the worst compiler in the history of the world.

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I second that.

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quote:

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Originally posted by L33T_h4x0r_d00d:
I second that.

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Put me down too.