From 063d134aeb4807872f45a3b7e6b43bed8f6320a2 Mon Sep 17 00:00:00 2001
From: Qi Wang <interwq@gwu.edu>
Date: Mon, 14 Feb 2022 17:30:11 -0800
Subject: [PATCH] Properly detect background thread support on Darwin.

When cross-compile, the host type / abi should be checked to determine
background thread compatibility.
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 0661005d..abcd91d2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2394,7 +2394,8 @@ fi
 dnl ============================================================================
 dnl Enable background threads if possible.
 
-if test "x${have_pthread}" = "x1" -a "x${je_cv_os_unfair_lock}" != "xyes" ; then
+if test "x${have_pthread}" = "x1" -a "x${je_cv_os_unfair_lock}" != "xyes" -a \
+       "x${abi}" != "xmacho" ; then
   AC_DEFINE([JEMALLOC_BACKGROUND_THREAD], [ ], [ ])
 fi