A gentle critque..

[sailormoontw]

My problem, maybe not related to this topic, is that the D programs written in
maybe 2002 2003 2004 is not compatible with the current D compiler, and the
library is not compatible too. I got a error using the optlink.

Those authors I don't know why but they might lose interest of D, they just
don't release newer version of their D program, and the old programs cannot be
used and I need to re-write them if I want to use.