Commits on Nov 28, 2022

1. Update use of libc::timespec to prepare for future libc version …

   In a future release of the `libc` crate, `libc::timespec` will contain
   private padding fields on `*-linux-musl` targets and so the struct will
   no longer be able to be created using the literal initialization syntax.
   
   Update places where `libc::timespec` is created to first zero initialize
   the value and then update the `tv_sec` and `tv_nsec` fields manually.
   Many of these places are in `const fn`s so a helper function
   `zero_init_timespec()` is introduced to help with this as
   `std::mem::MaybeUninit::zeroed()` is not a `const` function.
   
   Some matches on `libc::timespec` are also updated to include a trailing
   `..` pattern which works when `libc::timespec` has additional, private
   fields as well as when it does not (like for
   `x86_64-unknown-linux-gnu`).

   

   wesleywiser committed Nov 28, 2022
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