--- rpl/lapack/lapack/dlarrd.f	2017/06/17 11:06:25	1.18
+++ rpl/lapack/lapack/dlarrd.f	2018/05/29 06:55:19	1.19
@@ -329,7 +329,7 @@
      $                    M, W, WERR, WL, WU, IBLOCK, INDEXW,
      $                    WORK, IWORK, INFO )
 *
-*  -- LAPACK auxiliary routine (version 3.7.0) --
+*  -- LAPACK auxiliary routine (version 3.7.1) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     June 2016
@@ -385,6 +385,12 @@
 *
       INFO = 0
 *
+*     Quick return if possible
+*
+      IF( N.LE.0 ) THEN
+         RETURN
+      END IF
+*
 *     Decode RANGE
 *
       IF( LSAME( RANGE, 'A' ) ) THEN