--- rpl/lapack/lapack/zlarrv.f	2017/06/17 11:06:56	1.20
+++ rpl/lapack/lapack/zlarrv.f	2018/05/29 06:55:24	1.21
@@ -286,7 +286,7 @@
      $                   IBLOCK, INDEXW, GERS, Z, LDZ, ISUPPZ,
      $                   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
@@ -348,6 +348,13 @@
 *     ..
 
       INFO = 0
+*
+*     Quick return if possible
+*
+      IF( N.LE.0 ) THEN
+         RETURN
+      END IF
+*
 *     The first N entries of WORK are reserved for the eigenvalues
       INDLD = N+1
       INDLLD= 2*N+1