From c4773d40522e9e828f5b9d180ab15fc1bf975f5e Mon Sep 17 00:00:00 2001
From: Evan Miller <emmiller@gmail.com>
Date: Tue, 20 Jul 2021 10:24:16 -0400
Subject: [PATCH] Work around setpgid error on older Apple platforms

Expand the #7474 fix to Apple platforms. The issue affects older
OS versions, including Mac OS X 10.4.11.
---
 src/postfork.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/postfork.cpp b/src/postfork.cpp
index 3d1574f18..5c86ce997 100644
--- a/src/postfork.cpp
+++ b/src/postfork.cpp
@@ -95,7 +95,7 @@ int execute_setpgid(pid_t pid, pid_t pgroup, bool is_parent) {
             FLOGF_SAFE(proc_pgroup, "setpgid(2) returned EPERM. Retrying");
             continue;
         }
-#ifdef __BSD__
+#if defined(__BSD__) || defined(__APPLE__)
         // POSIX.1 doesn't specify that zombie processes are required to be considered extant and/or
         // children of the parent for purposes of setpgid(2). In particular, FreeBSD (at least up to
         // 12.2) does not consider a child that has already forked, exec'd, and exited to "exist"