how to pack a xxx.ps.gz documentation file ?

[Ionutz Borcoman <borco@borco-ei.eng.hokudai.ac.jp>]

Hi,

VDK library which I'm packaging has 2 documentation files distributed
separately as ps.gz. How am I supposed to package those files ? There's
no tar.gz, just 2 compressed postscript files.

TIA,

Ionutz

PS: I want to make somehow a vdk-doc package from them.