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fix(ci): drop i686 builds (pulp lacks 32-bit support)#92

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Smirkey merged 1 commit into
mainfrom
fix/ci-drop-i686
Jun 14, 2026
Merged

fix(ci): drop i686 builds (pulp lacks 32-bit support)#92
Smirkey merged 1 commit into
mainfrom
fix/ci-drop-i686

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@Smirkey

@Smirkey Smirkey commented Jun 14, 2026

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Problem

CI on main is failing on the two 32-bit (i686) build jobs:

  • build on linux (i686 - all - manylinux)
  • build on windows (i686 - ...)

Both fail with:

error: <inline asm>:5:15: register %rax is only available in 64-bit mode
error: could not compile `pulp` (lib)

Root cause

PR #85 (linear sum assignment) added perfect-matching = "0.1.0" to powerboxesrs. Dependency chain:

powerboxesrs -> perfect-matching v0.1.0 -> pulp v0.20.1

pulp is a SIMD crate that emits x86-64-only inline asm (vmovss xmm0, [rax + 0]) and cannot compile for 32-bit targets. perfect-matching depends on pulp unconditionally (no feature gate), so there's no way to opt out while keeping the LSAP feature.

Fix

Drop the linux/i686 and windows/i686 entries from the build matrix in .github/workflows/ci.yml. This is the minimal change to unblock main.

Trade-off: powerboxes will no longer publish 32-bit wheels (it did in older 0.1.x releases). Acceptable given the new LSAP dependency can't build for those targets.

🤖 Generated with Claude Code

@Smirkey Smirkey merged commit 60a34c7 into main Jun 14, 2026
3 of 14 checks passed
@Smirkey Smirkey deleted the fix/ci-drop-i686 branch June 14, 2026 10:13
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