SUBROUTINE ERINFO(LINFO, SRNAME, INFO, ISTAT)
!
!  -- LAPACK95 interface driver routine (version 3.0) --
!     UNI-C, Denmark; Univ. of Tennessee, USA; NAG Ltd., UK
!     September, 2000
!
!  .. IMPLICIT STATEMENT ..
         IMPLICIT NONE
!  .. SCALAR ARGUMENTS ..
         CHARACTER( LEN = * ), INTENT(IN)              :: SRNAME
         INTEGER             , INTENT(IN)              :: LINFO
         INTEGER             , INTENT(OUT), OPTIONAL   :: INFO
         INTEGER             , INTENT(IN), OPTIONAL    :: ISTAT
!  .. EXECUTABLE STATEMENTS ..
!         IF( ( LINFO < 0 .AND. LINFO > -200 ) .OR.                     &
!    &       ( LINFO > 0 .AND. .NOT.PRESENT(INFO) ) )THEN
      IF( ( ( LINFO < 0 .AND. LINFO > -200 ) .OR. LINFO > 0 )           &
     &           .AND. .NOT.PRESENT(INFO) )THEN
        WRITE (*,*) 'Program terminated in LAPACK95 subroutine ',SRNAME
        WRITE (*,*) 'Error indicator, INFO = ',LINFO
        IF( PRESENT(ISTAT) )THEN
          IF( ISTAT /= 0 ) THEN
            IF( LINFO == -100 )THEN
              WRITE (*,*) 'The statement ALLOCATE causes STATUS = ',    &
     &                    ISTAT
            ELSE
              WRITE (*,*) 'LINFO = ', LINFO, ' not expected'
            END IF
          END IF   
        END IF
        STOP
         ELSE IF( LINFO <= -200 ) THEN
           WRITE(*,*) '++++++++++++++++++++++++++++++++++++++++++++++++'
           WRITE(*,*) '*** WARNING, INFO = ', LINFO, ' WARNING ***'
           IF( LINFO == -200 )THEN
             WRITE(*,*)                                                 &
     &        'Could not allocate sufficient workspace for the optimum'
             WRITE(*,*)                                                 &
     &        'blocksize, hence the routine may not have performed as'
             WRITE(*,*) 'efficiently as possible'
         ELSE
           WRITE(*,*) 'Unexpected warning'
         END IF
           WRITE(*,*) '++++++++++++++++++++++++++++++++++++++++++++++++'
        END IF
        IF( PRESENT(INFO) ) THEN
          INFO = LINFO
        END IF
      END SUBROUTINE ERINFO