Fix typo and potentially undefined variables

(copies fixes made in Reference-LAPACK PR 477 after the initial cherrypick)

Author: martin-frbg

lapack-netlib/SRC/chgeqz.f

@@ -319,14 +319,14 @@ SUBROUTINE CHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
       REAL               ABSB, ANORM, ASCALE, ATOL, BNORM, BSCALE, BTOL,
      $                   C, SAFMIN, TEMP, TEMP2, TEMPR, ULP
       COMPLEX            ABI22, AD11, AD12, AD21, AD22, CTEMP, CTEMP2,
-     $                   CTEMP3, ESHIFT, RTDISC, S, SHIFT, SIGNBC, T1,
+     $                   CTEMP3, ESHIFT, S, SHIFT, SIGNBC,
      $                   U12, X, ABI12, Y
 *     ..
 *     .. External Functions ..
       COMPLEX            CLADIV
       LOGICAL            LSAME
       REAL               CLANHS, SLAMCH
-      EXTERNAL           CLADIV, LLSAME, CLANHS, SLAMCH
+      EXTERNAL           CLADIV, LSAME, CLANHS, SLAMCH
 *     ..
 *     .. External Subroutines ..
       EXTERNAL           CLARTG, CLASET, CROT, CSCAL, XERBLA
@@ -351,6 +351,7 @@ SUBROUTINE CHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILSCHR = .TRUE.
          ISCHUR = 2
       ELSE
+         ILSCHR = .TRUE.
          ISCHUR = 0
       END IF
 *
@@ -364,6 +365,7 @@ SUBROUTINE CHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILQ = .TRUE.
          ICOMPQ = 3
       ELSE
+         ILQ = .TRUE.
          ICOMPQ = 0
       END IF
 *
@@ -377,6 +379,7 @@ SUBROUTINE CHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILZ = .TRUE.
          ICOMPZ = 3
       ELSE
+         ILZ = .TRUE.
          ICOMPZ = 0
       END IF
 *

lapack-netlib/SRC/zhgeqz.f

@@ -319,7 +319,7 @@ SUBROUTINE ZHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
       DOUBLE PRECISION   ABSB, ANORM, ASCALE, ATOL, BNORM, BSCALE, BTOL,
      $                   C, SAFMIN, TEMP, TEMP2, TEMPR, ULP
       COMPLEX*16         ABI22, AD11, AD12, AD21, AD22, CTEMP, CTEMP2,
-     $                   CTEMP3, ESHIFT, RTDISC, S, SHIFT, SIGNBC, T1,
+     $                   CTEMP3, ESHIFT, S, SHIFT, SIGNBC,
      $                   U12, X, ABI12, Y
 *     ..
 *     .. External Functions ..
@@ -352,6 +352,7 @@ SUBROUTINE ZHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILSCHR = .TRUE.
          ISCHUR = 2
       ELSE
+         ILSCHR = .TRUE.
          ISCHUR = 0
       END IF
 *
@@ -365,6 +366,7 @@ SUBROUTINE ZHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILQ = .TRUE.
          ICOMPQ = 3
       ELSE
+         ILQ = .TRUE.
          ICOMPQ = 0
       END IF
 *
@@ -378,6 +380,7 @@ SUBROUTINE ZHGEQZ( JOB, COMPQ, COMPZ, N, ILO, IHI, H, LDH, T, LDT,
          ILZ = .TRUE.
          ICOMPZ = 3
       ELSE
+         ILZ = .TRUE.
          ICOMPZ = 0
       END IF
 *