GNAT Installation on Linux

[Makaveli]

Newbie here running into problems install GNAT on OpenSUSE 10.1.

The initial installation worked fine.  I could run

$ gnatmake hello

with success.

I re-installed GNAT (do not remember why!) in the same directory, and now,

$ gnatmake hello

gives an error indicating that 'gnat1' could not be found.

I can add the path to gnat1 in the PATH variable, but I do not remember doing this with the original install.

If I wanted to uninstall gnat and start from scratch, what command do I issue?  

Thanks in advance.