Replaces the single Linux + single Windows tarball with six self-
contained variants — three µarch levels × two OSes. End users on the
Releases page see them as six individually-downloadable archives:
crafter-build-{linux,windows}-x86_64-{v2,v3,v4}.{tar.gz,zip}
Pick the v-level your CPU supports:
v2: SSE4.2 baseline (every x86_64 since ~2011)
v3: AVX2 + FMA + BMI (Intel Haswell+, AMD Excavator+, ~2013+)
v4: AVX-512 (Skylake-X+, recent server-class)
How: the bootstrap binary stays at v2 because the CI SBC (N5105 / Tremont,
no AVX) can't execute v3 or v4 instructions and would crash before it
could rebuild itself for higher levels. Once bootstrap's done, the same
v2 binary is re-invoked with CRAFTER_BUILD_MARCH overridden per variant
to produce v2/v3/v4 outputs. Same again with --target=x86_64-w64-mingw32
for the Windows variants. ExternalDependency cache keys on (url, target,
march) already so glslang gets built per variant; subsequent CI runs hit
the cache.
Also drops the wrapper zip from workflow artifacts: instead of one
upload-artifact call producing crafter-build.zip containing six archives,
there's now one call per archive. The PR / run page shows six small
downloads named for what they are.
forgejo-release continues to upload release-dir/* as individual assets,
so the Releases page already has the right shape — this just brings the
workflow artifact UX in line.
Bumped the glslang cache key to v2 (one-time invalidation) since the
cache layout now needs space for six glslang builds rather than two.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Jorijn van der Graaf
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