Empty page for makefiles that are missing a MANSEC variable (the directories don't have code in them).

jacobi/
none/
sor/
lu/
shell/
bjacobi/
mg/
eisens/
ilu/
icc/
asm/
ksp/
composite/
redundant/
spai/
is/
cholesky/
pbjacobi/
esi/
mat/
hypre/
ramg/
samg/
makefile