32-bit musl with a 64-bit time_t pads struct timespec, so the field-by-field
literals do not compile there.  From Alpine's community/firefox time64.patch
by Aelin <aelin@postmarketos.org>, minus the wgpu-hal hunk, which upstream
has taken.  libc derives Default for timespec on every target, so this needs
no guard.

--- a/third_party/rust/alsa/src/pcm.rs
+++ b/third_party/rust/alsa/src/pcm.rs
@@ -1110,19 +1110,19 @@
     fn ptr(&self) -> *mut alsa::snd_pcm_status_t { self.0.as_ptr() as *const _ as *mut alsa::snd_pcm_status_t }
 
     pub fn get_htstamp(&self) -> timespec {
-        let mut h = timespec {tv_sec: 0, tv_nsec: 0};
+        let mut h = timespec::default();
         unsafe { alsa::snd_pcm_status_get_htstamp(self.ptr(), &mut h) };
         h
     }
 
     pub fn get_trigger_htstamp(&self) -> timespec {
-        let mut h = timespec {tv_sec: 0, tv_nsec: 0};
+        let mut h = timespec::default();
         unsafe { alsa::snd_pcm_status_get_trigger_htstamp(self.ptr(), &mut h) };
         h
     }
 
     pub fn get_audio_htstamp(&self) -> timespec {
-        let mut h = timespec {tv_sec: 0, tv_nsec: 0};
+        let mut h = timespec::default();
         unsafe { alsa::snd_pcm_status_get_audio_htstamp(self.ptr(), &mut h) };
         h
     }
--- a/third_party/rust/zeitstempel/src/unix.rs
+++ b/third_party/rust/zeitstempel/src/unix.rs
@@ -12,10 +12,7 @@
 ///
 /// [`clock_gettime`]: https://manpages.debian.org/buster/manpages-dev/clock_gettime.3.en.html
 pub fn now_including_suspend() -> u64 {
-    let mut ts = libc::timespec {
-        tv_sec: 0,
-        tv_nsec: 0,
-    };
+    let mut ts = libc::timespec::default();
     unsafe {
         libc::clock_gettime(libc::CLOCK_BOOTTIME, &mut ts);
     }
@@ -32,10 +29,7 @@
 /// [`clock_gettime`]: https://manpages.debian.org/buster/manpages-dev/clock_gettime.3.en.html
 /// [`FreeBSD clock_gettime`]: https://man.freebsd.org/cgi/man.cgi?query=clock_gettime&manpath=FreeBSD+15.0-RELEASE
 pub fn now_awake() -> u64 {
-    let mut ts = libc::timespec {
-        tv_sec: 0,
-        tv_nsec: 0,
-    };
+    let mut ts = libc::timespec::default();
     #[cfg(any(target_os = "linux", target_os = "android"))]
     let clock = libc::CLOCK_MONOTONIC;
     #[cfg(target_os = "freebsd")]