Heya,

while I was emerging dev-libs/sqlite, I noticed that it uses 
USE=threadsafe to distinguish between threadsafe and non-threadsafe 
builds. While this is not strange per-se, lots of (?) other packages 
seem to make that decision based on USE=threads (dev-lang/php, 
dev-db/postgresql-base, ...).
I think we should be consistent here, i.e. either change the two 
packages, which are using USE=threadsafe (dev-libs/sqlite and 
dev-lang/spidermonkey), to use "threads" instead or the other way round. 
I guess the easiest way would be to move from "threadsafe" to "threads", 
but I'm not sure whether this is really the better alternative. 
"threadsafe" sounds more appropriate to me in those cases, but there 
would probably be a huge amount of work required to change that.
Now the question is: What do you think is the better way of making this 
consistent? :)

-- 
Christian Hoffmann