I know. But I was hoping to not have to spend anymore money on it as I already own the full version for windows. But if that is the only way than I just might have to go that route.

Here's the issue. I have all three Descent games, 1, 2, and 3. I have used them all in Windows/DOS with no problem. I have also been able to use D2X-XL to play Descent 2 and the Descent 1 missions in Linux, thanks Diedel. Now I want to play Descent 3 in Linux. I have tried Loki's demo and it worked ...

Diedel, thanks for the help so far.
I first took care of the #define _WIN32 ... #endif brackets in fbuffer.c and fbuffer.h by commenting them out. I then did a make clean and tried to make again but got the same results.
Next I attempted to find out which OpenGL headers I had installed on my box but ...

I just tried it again with the same result. This time I untared the source into a new directory of its own but still got the same error.

I have also tried the binary version but it does not start. So I had it create a log file and this was the last line of the file:
Error: Could not set ...

I'm having some problems compiling the 1.5.59 version of d2x-xl. I run ./configure with no problem and get this at the end of the output:
d2x has been configured successfully.

Platform(s): linux ogl sdl
Features : no_asm network kalinix ipx OpenGL fasteventpoll fastfileio release

Shared game ...

I have two problems. Both of these happen in Linux. I am using SuSE 9.3 on a laptop with an Intel 855MG graphics controller.
First in 1.5.43. While playing Descent 1 missions, while exiting the map after destroying the reactor the game will crash just before the exit sequence. I then get this error ...