The 486dx4/100 is a CPU, not a DirectX version.
486 arch with 100Mhz and a multiplier of 4 (with a FSB of 25Mhz)
(Cyrix / AMD)
Sorry for the confusion there 
I got the source downloaded just about now and will start compiling it right away.
I hope that it wont take so long since I never compiled any program on Linux that long
Thank you.
Dennis
Edit:
Seems there is something broken in 1.7.2.
I am currently following this: [Compiling 1.7.2 on Windows)
Edit2:
Replacing the Icon file and editing the file mentioned in the thread above worked. Compiling