From 587fdaa2a9220f7df15e021b97ba682655d87f1e Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 30 Sep 2015 03:24:37 +0000
Subject: [PATCH] custom-chroot: run with --propagation=private when available

---
 .bin/custom-chroot | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/.bin/custom-chroot b/.bin/custom-chroot
index ebc5957..8b109d0 100755
--- a/.bin/custom-chroot
+++ b/.bin/custom-chroot
@@ -6,10 +6,12 @@ bootstrap() {
 	if [[ -z ${UNSHARE} ]] ; then
 		mount_args=
 		if type -P unshare >&/dev/null ; then
+			test_arg() { unshare "$@" -- true >&/dev/null && uargs+=( "$@" ); }
 			uargs=( -m )
-			unshare -u -- true >&/dev/null && uargs+=( -u )
-			unshare -i -- true >&/dev/null && uargs+=( -i )
-			unshare -p -- true >&/dev/null && uargs+=( -p -f --mount-proc )
+			test_arg -u
+			test_arg -i
+			test_arg -p -f --mount-proc
+			test_arg --propagation=private
 			UNSHARE=true exec unshare "${uargs[@]}" -- "$0" "$@"
 		fi
 	else
-- 
2.39.2