Fix EXTERNAL declarations (Reference-LAPACK PR 1257)

Author: martin-frbg

lapack-netlib/SRC/clarf1f.f

@@ -150,7 +150,7 @@ SUBROUTINE CLARF1F( SIDE, M, N, V, INCV, TAU, C, LDC, WORK )
       INTEGER            I, LASTV, LASTC
 *     ..
 *     .. External Subroutines ..
-      EXTERNAL           CAXPY, CGEMV, CGER, CSCAL
+      EXTERNAL           CAXPY, CGEMV, CGERC, CSCAL
 *     ..
 *     .. Intrinsic Functions ..
       INTRINSIC          CONJG

lapack-netlib/SRC/zupmtr.f

@@ -176,7 +176,7 @@ SUBROUTINE ZUPMTR( SIDE, UPLO, TRANS, M, N, AP, TAU, C, LDC,
       EXTERNAL           LSAME
 *     ..
 *     .. External Subroutines ..
-      EXTERNAL           XERBLA, ZLARF1, ZLARF1F
+      EXTERNAL           XERBLA, ZLARF1L, ZLARF1F
 *     ..
 *     .. Intrinsic Functions ..
       INTRINSIC          DCONJG, MAX