See Rich Felker's original message to which Florian Weimer (glibc patch author) replied: https://www.openwall.com/lists/musl/2018/07/02/5
> ... glibc has adding [sic] the arc4random interfaces and it seems reasonable that we should too....
> ... glibc has adding [sic] the arc4random interfaces and it seems reasonable that we should too....
Has musl committed to adding it if glibc does? If not, why would musl add it?