variable list of variables

[RoBeRt KaRp]

All below is in Bourne shell.
I am trying to acheive the following:

users="robi henry matt"
for person in $users
do
	${person}_files="something that gives me a list of files say x.c y.c z.c"
done

What I want to do now is get to the list of files. Something like:

for file in ${${person}_files}
do
	something_to_do_with_file
done

However, I can't access this, ${${person}_files}, variable. The
shell tells me bad substitution for the above and I can't think
of a way to get ${robi_files} (say) out of this.

Any help would be appreciated,

Thanx,

	- Robi
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