v0.0.4

0.0.4 (2026-10-25)

Changed

• On 32-bit x86 the library is built with SSE2 math
  (-msse2 -mfpmath=sse), so it needs a processor with SSE2, and every
  build now leaves trapping math at the compiler's default, from the
  family's compiler flags. On 64-bit builds the bake still matches byte
  for byte and every test passes unchanged
  (#57).

Fixed

• An ALSA output through ALSA's PulseAudio plugin, the default PCM
  wherever ALSA programs are routed to a PulseAudio server (a PipeWire
  system without pipewire-alsa included), counts the gaps it plays.
  The plugin plays silence for a starved stream without -EPIPE, so
  such gaps used to leave underruns unchanged. A running output now
  counts one underrun when it finds its PCM's queue empty before a
  write, once the PCM has had the stream's frames, and when a write
  comes more than a period after every frame written so far could have
  played out, once the write before it found frames queued; the second
  catches a stall that pipewire-pulse reports with frames still
  queued. Each gap counts once. The first fill after a start or a
  recovery, silence written while the stream does not run, and an empty
  queue reported before the frames could have played count nothing, and
  neither does a sink that starts late. A sink that stops taking frames
  mid-stream and resumes later also counts an underrun, since the server
  reports it as it reports a starved stream. Hardware PCMs are
  unchanged: their gaps still come as -EPIPE
  (#35,
  #62).
• On 32-bit x86 the library's floating-point setting also holds the x87
  control word, so a host that leaves x87 at single or double precision
  no longer changes what the library computes there, and sqrt compiles
  to one rounded instruction rather than a C library call that may set
  errno. The bake and the golden renders are unchanged
  (#23).

Release gate: the nightly extended run on main. The owner waived device-checklist.md step 7 for this release on 2026-10-25.