# To subscribers of the xforms list from Nicolas Godzik <nicolas.godzik@inria.fr> :
Hello,
I'm a beginner in the use of Xform library. I would like to use gl
canvas to add some opengl animations to the program i do.
First of all, I wanted to see the result of the demos gl.c and glwin.c
But I can't manage to compile them, the following error occur :
gl.c: In function `void buffer_cb (FL_OBJECT *, long int)':
gl.c:165: cannot convert `void *' to `FD_form *' in initialization
and the line 165 is the following :
FD_form *fdui = ob->form->fdui;
and for glwin.c, the compilator says :
/tmp/ccmwPJwD.o: In function `main':
/tmp/ccmwPJwD.o(.text+0x52): undefined reference to `fl_glwincreate'
collect2: ld returned 1 exit status
Is anyone of you has already had this problem ? is there an error in the
file?
It would be very grateful if someone could tell me how to compile these
two files.
Thank u
Niko
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