[VOL-5031] Build and deploy voltha-onos for v2.12
makefiles/*
-----------
o https://github.com/opencord/onf-make
o Update to the latest library makefiles to support more lint targets.
VERSION
-------
o Cosmetic dev version bump to triage build state.
Change-Id: Iaddd825c24afdfa13e99cfd46cfe887072016d0f
diff --git a/makefiles/help/trailer.mk b/makefiles/help/trailer.mk
new file mode 100644
index 0000000..8fcdfa6
--- /dev/null
+++ b/makefiles/help/trailer.mk
@@ -0,0 +1,42 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+
+# include this makefile late so text will be displayed at the end6
+
+help ::
+ @echo
+ @echo '[CLEAN]'
+ @echo ' clean Remove generated targets'
+ @echo ' sterile clean + remove virtual env interpreter install'
+
+help ::
+ @echo
+ @echo '[HELP]'
+ @echo ' help Display program help'
+ @echo ' help-verbose Display additional targets and help'
+
+## -----------------------------------------------------------------------
+# repo::voltha-docs -- patch logic not deployed everywhere.
+## -----------------------------------------------------------------------
+# help ::
+# @echo
+# @echo '[NOTE: python 3.10+]'
+# @echo ' The interpreter is not yet fully supported across foreign repositories.'
+# @echo ' While working locally, if make fails to build a target try:'
+# @echo ' $(MAKE) $${target} NO_OTHER_REPO_DOCS=1'
+
+# [EOF]