fix bug discovered by Frank: ei_alloc_stack must really return aligned pointers
fix bug discovered by Frank:
ei_alloc_stack must really return aligned pointers

--HG--
extra : convert_revision : svn%3A283d02a7-25f6-0310-bc7c-ecb5cbfe19da/trunk/kdesupport/eigen2%40901151

mjbshaw/Eigen,madlib/eigen_backup,rotorliu/eigen,rotorliu/eigen,madlib/eigen_backup,mjbshaw/Eigen,madlib/eigen_backup,mjbshaw/Eigen,madlib/eigen_backup,rotorliu/eigen,rotorliu/eigen,mjbshaw/Eigen