--- rpl/lapack/lapack/dggglm.f	2016/08/27 15:34:23	1.15
+++ rpl/lapack/lapack/dggglm.f	2023/08/07 08:38:51	1.19
@@ -2,25 +2,25 @@
 *
 *  =========== DOCUMENTATION ===========
 *
-* Online html documentation available at 
-*            http://www.netlib.org/lapack/explore-html/ 
+* Online html documentation available at
+*            http://www.netlib.org/lapack/explore-html/
 *
 *> \htmlonly
-*> Download DGGGLM + dependencies 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dggglm.f"> 
-*> [TGZ]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dggglm.f"> 
-*> [ZIP]</a> 
-*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dggglm.f"> 
+*> Download DGGGLM + dependencies
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dggglm.f">
+*> [TGZ]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dggglm.f">
+*> [ZIP]</a>
+*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dggglm.f">
 *> [TXT]</a>
-*> \endhtmlonly 
+*> \endhtmlonly
 *
 *  Definition:
 *  ===========
 *
 *       SUBROUTINE DGGGLM( N, M, P, A, LDA, B, LDB, D, X, Y, WORK, LWORK,
 *                          INFO )
-* 
+*
 *       .. Scalar Arguments ..
 *       INTEGER            INFO, LDA, LDB, LWORK, M, N, P
 *       ..
@@ -28,7 +28,7 @@
 *       DOUBLE PRECISION   A( LDA, * ), B( LDB, * ), D( * ), WORK( * ),
 *      $                   X( * ), Y( * )
 *       ..
-*  
+*
 *
 *> \par Purpose:
 *  =============
@@ -172,12 +172,10 @@
 *  Authors:
 *  ========
 *
-*> \author Univ. of Tennessee 
-*> \author Univ. of California Berkeley 
-*> \author Univ. of Colorado Denver 
-*> \author NAG Ltd. 
-*
-*> \date November 2015
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
 *> \ingroup doubleOTHEReigen
 *
@@ -185,10 +183,9 @@
       SUBROUTINE DGGGLM( N, M, P, A, LDA, B, LDB, D, X, Y, WORK, LWORK,
      $                   INFO )
 *
-*  -- LAPACK driver routine (version 3.6.0) --
+*  -- LAPACK driver routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2015
 *
 *     .. Scalar Arguments ..
       INTEGER            INFO, LDA, LDB, LWORK, M, N, P
@@ -270,8 +267,15 @@
 *
 *     Quick return if possible
 *
-      IF( N.EQ.0 )
-     $   RETURN
+      IF( N.EQ.0 ) THEN
+         DO I = 1, M
+            X(I) = ZERO
+         END DO
+         DO I = 1, P
+            Y(I) = ZERO
+         END DO
+         RETURN
+      END IF
 *
 *     Compute the GQR factorization of matrices A and B:
 *
@@ -284,7 +288,7 @@
 *
       CALL DGGQRF( N, M, P, A, LDA, WORK, B, LDB, WORK( M+1 ),
      $             WORK( M+NP+1 ), LWORK-M-NP, INFO )
-      LOPT = WORK( M+NP+1 )
+      LOPT = INT( WORK( M+NP+1 ) )
 *
 *     Update left-hand-side vector d = Q**T*d = ( d1 ) M
 *                                               ( d2 ) N-M