Add the install rules and exports the targets.
Now one can write
find_package(LAPACK 3.2.2)
in another project to find either the LAPACK build tree or the
install tree.
Modify size in declaration of DX and DY.
It was set to 1, and 5 or N in the comments !!!!!
Put * in the declaration and N in the comments
This routine may need to be double-checked.