FAIL in make check Linalg/QR_update vander(12)

[Justin Hooper]

Make check gives me the following failure on redhat-6.1:

PASS:   QR_update vander(4)
( 12, 12)[0,0]:   0.768572903784220163     0.768650834596433574
FAIL:   QR_update vander(12)
FAIL: QR Rank-1 Update

.....

This isn't particularly a routine I'm looking to use right now, but since
nobody else has mentioned it I was wondering if there were standard places
to look for problems (e.g. gcc version, etc..)