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diff --git a/src/lib/lapack/dgerq2.f b/src/lib/lapack/dgerq2.f
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--- a/src/lib/lapack/dgerq2.f
+++ /dev/null
@@ -1,122 +0,0 @@
-      SUBROUTINE DGERQ2( M, N, A, LDA, TAU, WORK, INFO )
-*
-*  -- LAPACK routine (version 3.1) --
-*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
-*     November 2006
-*
-*     .. Scalar Arguments ..
-      INTEGER            INFO, LDA, M, N
-*     ..
-*     .. Array Arguments ..
-      DOUBLE PRECISION   A( LDA, * ), TAU( * ), WORK( * )
-*     ..
-*
-*  Purpose
-*  =======
-*
-*  DGERQ2 computes an RQ factorization of a real m by n matrix A:
-*  A = R * Q.
-*
-*  Arguments
-*  =========
-*
-*  M       (input) INTEGER
-*          The number of rows of the matrix A.  M >= 0.
-*
-*  N       (input) INTEGER
-*          The number of columns of the matrix A.  N >= 0.
-*
-*  A       (input/output) DOUBLE PRECISION array, dimension (LDA,N)
-*          On entry, the m by n matrix A.
-*          On exit, if m <= n, the upper triangle of the subarray
-*          A(1:m,n-m+1:n) contains the m by m upper triangular matrix R;
-*          if m >= n, the elements on and above the (m-n)-th subdiagonal
-*          contain the m by n upper trapezoidal matrix R; the remaining
-*          elements, with the array TAU, represent the orthogonal matrix
-*          Q as a product of elementary reflectors (see Further
-*          Details).
-*
-*  LDA     (input) INTEGER
-*          The leading dimension of the array A.  LDA >= max(1,M).
-*
-*  TAU     (output) DOUBLE PRECISION array, dimension (min(M,N))
-*          The scalar factors of the elementary reflectors (see Further
-*          Details).
-*
-*  WORK    (workspace) DOUBLE PRECISION array, dimension (M)
-*
-*  INFO    (output) INTEGER
-*          = 0: successful exit
-*          < 0: if INFO = -i, the i-th argument had an illegal value
-*
-*  Further Details
-*  ===============
-*
-*  The matrix Q is represented as a product of elementary reflectors
-*
-*     Q = H(1) H(2) . . . H(k), where k = min(m,n).
-*
-*  Each H(i) has the form
-*
-*     H(i) = I - tau * v * v'
-*
-*  where tau is a real scalar, and v is a real vector with
-*  v(n-k+i+1:n) = 0 and v(n-k+i) = 1; v(1:n-k+i-1) is stored on exit in
-*  A(m-k+i,1:n-k+i-1), and tau in TAU(i).
-*
-*  =====================================================================
-*
-*     .. Parameters ..
-      DOUBLE PRECISION   ONE
-      PARAMETER          ( ONE = 1.0D+0 )
-*     ..
-*     .. Local Scalars ..
-      INTEGER            I, K
-      DOUBLE PRECISION   AII
-*     ..
-*     .. External Subroutines ..
-      EXTERNAL           DLARF, DLARFG, XERBLA
-*     ..
-*     .. Intrinsic Functions ..
-      INTRINSIC          MAX, MIN
-*     ..
-*     .. Executable Statements ..
-*
-*     Test the input arguments
-*
-      INFO = 0
-      IF( M.LT.0 ) THEN
-         INFO = -1
-      ELSE IF( N.LT.0 ) THEN
-         INFO = -2
-      ELSE IF( LDA.LT.MAX( 1, M ) ) THEN
-         INFO = -4
-      END IF
-      IF( INFO.NE.0 ) THEN
-         CALL XERBLA( 'DGERQ2', -INFO )
-         RETURN
-      END IF
-*
-      K = MIN( M, N )
-*
-      DO 10 I = K, 1, -1
-*
-*        Generate elementary reflector H(i) to annihilate
-*        A(m-k+i,1:n-k+i-1)
-*
-         CALL DLARFG( N-K+I, A( M-K+I, N-K+I ), A( M-K+I, 1 ), LDA,
-     $                TAU( I ) )
-*
-*        Apply H(i) to A(1:m-k+i-1,1:n-k+i) from the right
-*
-         AII = A( M-K+I, N-K+I )
-         A( M-K+I, N-K+I ) = ONE
-         CALL DLARF( 'Right', M-K+I-1, N-K+I, A( M-K+I, 1 ), LDA,
-     $               TAU( I ), A, LDA, WORK )
-         A( M-K+I, N-K+I ) = AII
-   10 CONTINUE
-      RETURN
-*
-*     End of DGERQ2
-*
-      END