LinuxQuestions.org - Unichrome driver installation

Hello ,

Here is my problem.I'm using a motherboard with integrated VGA, Unichrome S3.
SourceForge has a driver available which I'sure it spport it ,so I downloaded that.I have to confess that I hae little experience compiling drivers so I need help.Here is what the readme file says:

________________________________________________________________________
Building The Unichrome Projects drivers for your X version:
-----------------------------------------------------------

WARNING: The content of this file is about building and installing this
driver yourself. This will not make your package manager happy. You might
also want to back up via_drv.o/so and the manpage first.

If you run into any difficulties, please contact the unichrome-users
mailinglist at unichrome-users@lists.sourceforge.net . Subscribe at
http://lists.sourceforge.net/mailman...nichrome-users first.

1) Monolithic X:

Applies to xfree86 4.3.x and 4.4.x, and X.org 6.7.x, 6.8.x and 6.9.x.

1.1) Against a full X tree:

This requires that a sufficiently built X tree is present (see 1.2
otherwise). The top level directory of an X tree tends to be named xc/.
Replace <path_to_xc> with whatever is suited for you.

From the top level, in xf86-video-unichrome/, (the same level as this
file) run:

xmkmf <path_to_xc>
make Makefiles
make
make install

1.2) Preparing an X tree:

...

1.3) Against the SDK/DDK:

...

2) Modular X:

This is only suited for the X.org 7.x release.

...
????
what is xmkmf ??? tried man no result.....
please HELP !