Correcting Bug111 reported by Kevin Squire on LAPACK Mailing - August 15th 2013

Correcting Bug111 reported by Kevin Squire on LAPACK Mailing - August 15th 2013

From Kevin: We were following the recommendation for RWORK size calculation from
the ZGESDD header here ( http://netlib.org/lapack/complex16/zgesdd.f), and were
finding that when INFO=N, the size was insufficient, and generally led to a segmentation fault.

The current definition says that "If JOBZ = N, LRWORK >= 5*min(M,N)", but we found
that the minimum size needed to be at least 7*min(M,N). This was through experimentation
 and comparison with code from Numpy and Octave, so you may wish to verify this through the code.

JL: bug confirmed and reproduced - correction in comments
If JOBZ = N, LRWORK >= 7*min(M,N)