* Fabrice LORRAIN:
>> Therefore, it is not possible to install them in parallel.
Any reason not to use the same trick than for the other packages from
the suite (gcc, g77, gcj, gpc etc...). That is, have
/usr/bin/gnat*-version in the <> packages and provide a gnat-fsf package
with the symlink. Using update-alterative & friends is also an option.
This is certainly a possibility, but it involves some coding and it
doesn't seem to be worth the effort.
At the present on an uptodate sarge box, I can provide g*-2.95, g*-3.3,
g*-3.4 (and maybe 3.2) for almost all the tools from the suite but not
for gnat.
gnat-3.4 is not a feature-complete replacement for gnat, so it's
unlikely that you're using it if you're doing serious Ada work.
gnat-3.2 and gnat-3.3 have serious bugs, IIRC.