Dear GAP Forum,
J"urgen Ecker reported an error to the gap-forum. We were not able to
reproduce this error. A private discussion indicated that he was using an
old version of GAP which likely might be the reason of this error.
As there might be other users using older versions, I'll shortly give in
public instructions on how to upgrade to the most recent version of GAP:
The current version is 3.4.3. There have been 26 further patches to fix
bugs. If you type 'VERSION' in GAP, you should get a response like:
"lib: v3r4p3 1995/12/20, src: v3r4p0 1994/07/10, sys: bsd gcc ansi"
(The end of the string, starting with "sys" might differ, depending on
the system you are using)
If you get this string, this means that you have installed at least 3.4.3.
Unfortunately, there is no easy version to tell which patches have been
applied already. If in doubt, however, installing a patch twice will only
result in an error message by the installation program without messing
up your version. Just make sure that you install all patches in ascending
To update GAP to the current version you should get the files
/pub/gap/bugfixes/fix26lib.dif (and in future all fixes with a higher
number that have accumulated)
from our ftp server ftp.math.rwth-aachen.de.
Then install GAP as usual from the file gap3r4p4.zoo. Afterwards proceed
as in gapfix25.readme to update the patches 1-25 from gapfix25.zoo.
Finally use fix26lib (and possibly further fixes in the future) to apply
the last patch(es).