dependency creep: cond

[Sam Steingold]

Hi,
why does the cond module depend on

errno
stdbool
time
gettimeofday

I expected it to be similar to threadlib and lock in that it unifies the 
existing system functionality under a uniform API, and it turns out that it 
pulls in 4(!) packages.
is it possible to have a package condlib similar to threadlib which will not 
pull anything extra?

Thanks
Sam.