Allow nmatrix-atlas #invert! to work without CLAPACK
Allow nmatrix-atlas #invert! to work without CLAPACK

wlevine/nmatrix,wlevine/nmatrix,johnmarinelli/nmatrix,johnmarinelli/nmatrix,wlevine/nmatrix,agisga/nmatrix,wlevine/nmatrix,agisga/nmatrix,janusnic/nmatrix,agisga/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix,agisga/nmatrix,janusnic/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix