--- rpl/lapack/lapack/dlahqr.f	2014/01/27 09:28:20	1.13
+++ rpl/lapack/lapack/dlahqr.f	2015/11/26 11:44:17	1.14
@@ -183,7 +183,7 @@
 *> \author Univ. of Colorado Denver 
 *> \author NAG Ltd. 
 *
-*> \date September 2012
+*> \date November 2015
 *
 *> \ingroup doubleOTHERauxiliary
 *
@@ -207,10 +207,10 @@
       SUBROUTINE DLAHQR( WANTT, WANTZ, N, ILO, IHI, H, LDH, WR, WI,
      $                   ILOZ, IHIZ, Z, LDZ, INFO )
 *
-*  -- LAPACK auxiliary routine (version 3.4.2) --
+*  -- LAPACK auxiliary routine (version 3.6.0) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     September 2012
+*     November 2015
 *
 *     .. Scalar Arguments ..
       INTEGER            IHI, IHIZ, ILO, ILOZ, INFO, LDH, LDZ, N
@@ -223,8 +223,6 @@
 *  =========================================================
 *
 *     .. Parameters ..
-      INTEGER            ITMAX
-      PARAMETER          ( ITMAX = 30 )
       DOUBLE PRECISION   ZERO, ONE, TWO
       PARAMETER          ( ZERO = 0.0d0, ONE = 1.0d0, TWO = 2.0d0 )
       DOUBLE PRECISION   DAT1, DAT2
@@ -235,7 +233,7 @@
      $                   H22, RT1I, RT1R, RT2I, RT2R, RTDISC, S, SAFMAX,
      $                   SAFMIN, SMLNUM, SN, SUM, T1, T2, T3, TR, TST,
      $                   ULP, V2, V3
-      INTEGER            I, I1, I2, ITS, J, K, L, M, NH, NR, NZ
+      INTEGER            I, I1, I2, ITS, ITMAX, J, K, L, M, NH, NR, NZ
 *     ..
 *     .. Local Arrays ..
       DOUBLE PRECISION   V( 3 )
@@ -292,6 +290,10 @@
          I2 = N
       END IF
 *
+*     ITMAX is the total number of QR iterations allowed.
+*
+      ITMAX = 30 * MAX( 10, NH ) 
+*
 *     The main loop begins here. I is the loop index and decreases from
 *     IHI to ILO in steps of 1 or 2. Each iteration of the loop works
 *     with the active submatrix in rows and columns L to I.