From 6ab8d7e628c2ab066457bcd6288b8daac4af14c4 Mon Sep 17 00:00:00 2001
From: luisleo526 <luisleo52655@gmail.com>
Date: Sun, 11 Oct 2026 03:35:18 +0800
Subject: [PATCH] fix(entrypoint): make the per-run work dir honour TMPDIR on
 every host

macOS mktemp ignores TMPDIR for the no-template form; pass an explicit template so the private work dir stays under TMPDIR as the harness expects.
---
 docker/entrypoint.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index 294cc0d3..dff0a9a5 100755
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -96,7 +96,7 @@ SRC_CPP="${IN_DIR}/strategy.cpp"
 OHLCV="${IN_DIR}/ohlcv.csv"
 # Per-run work dir so parallel in-process invocations never collide on the
 # generated TU / shared object. Cleaned up on exit. (Was fixed /tmp/strategy.*)
-WORK="$(mktemp -d)"
+WORK="$(mktemp -d "${TMPDIR:-/tmp}/pf-work.XXXXXXXXXX")"
 trap 'rm -rf "$WORK"' EXIT
 GEN="${WORK}/strategy.cpp"
 SO="${WORK}/strategy.so"