Bulk filter undef vars to support makefile target lint-make
makefiles/include.mk
makefiles/lint/make/include.mk
makefiles/lint/make/makefile.mk
-------------------------------
o Move lint-make target logic into makefiles/lint/make/
makefiles/lint/make/warn-undef-vars.mk
--------------------------------------
o Volume undef warnings plague makefile linting.
o Makefile logic cleanup needed but in the interim valid-but-undef
vars are defined as "var := $(null)". This helps shorten the
error log so lint-make can be used as a default lint target.
Change-Id: I48a0c6b2c71cf1dd5a6554cc5823502ed88482d0
diff --git a/makefiles/lint/make/include.mk b/makefiles/lint/make/include.mk
new file mode 100644
index 0000000..2f49e88
--- /dev/null
+++ b/makefiles/lint/make/include.mk
@@ -0,0 +1,33 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-FileCopyrightText: 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+# https://gerrit.opencord.org/plugins/gitiles/onf-make
+# ONF.makefile.version = 1.2
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## Bleeding early import handled by makefiles/include.mk
+# include $(ONF_MAKEDIR)/lint/make/warn-undef-vars.mk
+
+include $(ONF_MAKEDIR)/lint/make/makefile.mk
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]