archivers/liblz4: fix build failure on DragonFly

[dragonflybot]

Generated by the DragonFly agentic build-fix loop and verified in a clean dev-env. Reviewed and accepted by operator operator before submission.

Problem

The build failed on @2026Q2 — classified patch-error, confidence high.

A DragonFly‑specific post‑patch step (likely from a Makefile in the DeltaPorts overlay) invokes sed on file paths that incorrectly include a ../../ prefix, causing it to resolve outside the source tree. The missing file error (No such file or directory) occurs because the constructed path /construction/archivers/liblz4/lz4-1.10.0/../../Makefile points to /construction/archivers/liblz4/Makefile instead of the intended ${WRKSRC}/Makefile. This is not a static patch‑hunk failure; the sed command itself is flawed.

Evidence:

• Exact error line:
  sed: /construction/archivers/liblz4/lz4-1.10.0/../../Makefile: No such file or directory
• The failing command shown in the log:
  /usr/bin/sed -i.bak 's|GNU FreeBSD|GNU FreeBSD DragonFly|' /construction/archivers/liblz4/lz4-1.10.0/../../Makefile /construction/archivers/liblz4/lz4-1.10.0/../../lib/Makefile /construction/archivers/liblz4/lz4-1.10.0/../../programs/Makefile

Both clearly show that the sed operation is acting on paths that escape WRKSRC by an extra two levels.

Fix

Automated fix for the build failure in archivers/liblz4.

What changed

2 files changed, +11/-6

• ports/archivers/liblz4/Makefile.DragonFly
• ports/archivers/liblz4/overlay.dops

Verification

Built successfully in a DragonFly dev-env (dsynth) for target @2026Q2.
Verified 2026-05-28T11:42:12.098923+00:00.

Provenance

• Operator: operator
• Agent: model=deepseek/deepseek-v4-pro attempts=1 tokens=157183