cmake ELEM_HAVE_DAXPY_POST examples

m-a-d-n-e-s-s/madness src/madness/external/elemental/cmake/tests/Math.cmake :43 

check_function_exists(daxpy_ ELEM_HAVE_DAXPY_POST)

m-a-d-n-e-s-s/madness src/madness/external/elemental/cmake/tests/Math.cmake :49 

elseif(ELEM_HAVE_DAXPY_POST)