sigil-dsp: add first-class web (wasm32-wasi) config

Message

soundpipe + the DSP natives are portable C (no platform deps) and compile + run under wasm32-wasi — verified: all 44 soundpipe modules build clean and a linked sp_osc produces a correct 440Hz waveform under WASI. Adds a web config so sigil build --config web produces libsigil-dsp.a as a wasm archive (46 wasm objects, 0 ELF), enabling motif's streaming render path (composition -> PCM) in the browser. Same library/build task serves native and web; only the target differs. No dep gating needed (sigil-dsp's only runtime dep is sigil-stdlib).

Changed

 package.sgl | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

Diff

package.sglmodified

@@ -22,7 +22,20 @@

name: 'release

output-dir: "build/release"

debug?: #f

−25

optimize: 2))

+25

optimize: 2)

+26

+27

;; Web (wasm32-wasi): soundpipe + the DSP natives compile cleanly for wasm

+28

;; (verified — portable C math, no platform deps), so motif's streaming

+29

;; render path works in the browser. The same library/build task serves

+30

;; native and web; only the target differs.

+31

(config

+32

name: 'web

+33

output-dir: "build/web"

+34

toolchain: 'zig

+35

target: "wasm32-wasi"

+36

debug?: #f

+37

optimize: 2

+38

features: '(web wasm)))

dependencies: (list

(from-git url: "codeberg:sigil/sigil" package: "sigil-stdlib" version: "^0.17"))