Define type conversions explicitly (Reference-LAPACK PR703)
* RQ factorization of M-by-N matrix A: A = R*Q
*
CALL CGERQF( M, N, A, LDA, TAUA, WORK, LWORK, INFO )
- LOPT = REAL( WORK( 1 ) )
+ LOPT = INT( WORK( 1 ) )
*
* Update B := B*Q**H
*
