1 files changed, 12 insertions, 0 deletions

diff --git a/release/release.conf.sample b/release/release.conf.sample
index e7b9933bb3c3b..66f0cf99cfd8d 100644
--- a/release/release.conf.sample
+++ b/release/release.conf.sample
@@ -56,6 +56,18 @@ PORTBRANCH="ports/head@rHEAD"
 ## means.
 #CHROOTBUILD_SKIP=
 
+## Set to a non-empty value skip checkout or update of /usr/src in
+## the chroot.  This is intended for use when /usr/src already exists.
+#SRC_UPDATE_SKIP=
+
+## Set to a non-empty value skip checkout or update of /usr/doc in
+## the chroot.  This is intended for use when /usr/doc already exists.
+#DOC_UPDATE_SKIP=
+
+## Set to a non-empty value skip checkout or update of /usr/ports in
+## the chroot.  This is intended for use when /usr/ports already exists.
+#PORTS_UPDATE_SKIP=
+
 ## Set to pass additional flags to make(1) for the build chroot setup, such
 ## as TARGET/TARGET_ARCH.
 #CHROOT_MAKEENV=