use of rand() in zsh

[Clinton Bunch <cdb_zsh@xxxxxxxxxxx>]

Is there a reason that zsh goes out of the way (srand_deterministic) to 
use the least random "random" function on modern Unix?  I would think a 
zrandom function that used getrandom() or arc4random() or /dev/urandom 
would serve better. But before I write one, I wanted to know if there 
was a reason that isn't obvious to me.


(I have an idea for a new module builtin that solved the mktemp race in 
zsh scripts and it should use a better random source than rand())