looks like it had been compiled without gdbm support.

configure:

…
echo “$as_me:$LINENO: WARNING: \”You don\’t have any dbm libraries installed — disabling cache functions\“” >&5
echo “$as_me: WARNING: \”You don\’t have any dbm libraries installed — disabling cache functions\“” >&2;}
cat >>confdefs.h <<\_ACEOF
#define NOCACHE 1
…

(from redmine: issue id 1242, created on 2012-07-06, closed on 2012-08-02)

• Changesets:
  • Revision ca2a4caf by Natanael Copa on 2012-07-08T10:51:02Z:

main/jwhois: enable cache

fixes #1242

• Revision 67891375 by Natanael Copa on 2012-07-09T07:08:05Z:

main/jwhois: enable cache

fixes #1242