Compile error about turboturtle HOT 2 OPEN

Hi, I am usring ubuntu 10.04, I have install the openGL related development 
tools(actually i don't know how to program in 3D with openGL, i just install 
them), but i failed while compiling too:

Compiling Cube.logo to Cube.cpp
Compiling Cube.cpp to Cube.o
Compiling wrapper code
Linking wrapper code with Cube.o to produce executable Cube.
wrapper_main.o: In function `main':
wrapper_main.cpp:(.text+0x3bb): undefined reference to `glXSwapIntervalSGI'
collect2: ld returned 1 exit status

any advice?

WRT the undefined reference to `glXSwapIntervalSGI' error, in main_wrapper.c, 
simply comment out this call.
I'm building this on Debian. It looks like it's working correctly, the graphics 
come up nicely.
Googled up similar errors to this one to see if there was a way around it. This 
is what was suggested.
I know you had this problem years ago, just answering here so that if anyone 
wants to make this code work, they should be able to now.
Cheers,
Dave