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#
# Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation. Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#
################################################################################
# MakeIncludeStart.gmk should be included first of all in all include files
################################################################################
# Get the next to last word (by prepending a padding element)
THIS_INCLUDE_PATH := $(word $(words ${MAKEFILE_LIST}),padding ${MAKEFILE_LIST})
THIS_INCLUDE := $(patsubst $(TOPDIR_ALT)/make/%,%,$(patsubst $(TOPDIR)/make/%,%,$(THIS_INCLUDE_PATH)))
# Print an indented message, also counting the top-level makefile as a level
ifneq ($(INCLUDE_GUARD_$(THIS_INCLUDE)), true)
THIS_INCLUDE_MSG := include
else
THIS_INCLUDE_MSG := included already
endif
ifeq ($(LOG_FLOW), true)
$(info :$(foreach s, top $(INCLUDE_STACK) $(SNIPPET_STACK), )Enter $(THIS_INCLUDE) [$(THIS_INCLUDE_MSG)])
endif
ifneq ($(filter $(THIS_INCLUDE), $(INCLUDE_STACK)), )
$(error Internal makefile error: Include loop detected: $(THIS_INCLUDE) $(INCLUDE_STACK))
endif
ifeq ($(words $(MAKEFILE_LIST)), 2)
$(error $(THIS_INCLUDE_PATH): This file is supposed to be included)
endif
# In a preinit environment, we do not have any SPEC
ifneq ($(IS_PREINIT_ENV), true)
ifeq ($(SPEC), )
$(error $(THIS_INCLUDE_PATH): SPEC is not set)
endif
ifeq ($(wildcard $(SPEC)), )
$(error $(THIS_INCLUDE_PATH): spec.gmk file $(SPEC) is missing)
endif
ifneq ($(MAKEBASE_INCLUDED), true)
$(error $(THIS_INCLUDE_PATH): MakeBase.gmk is not included)
endif
endif
# Push our helper name onto the stack
INCLUDE_STACK := $(THIS_INCLUDE) $(INCLUDE_STACK)
# Setup an automatic include guard
ifneq ($(INCLUDE_GUARD_$(THIS_INCLUDE)), true)
INCLUDE := true
# Hook to include the corresponding custom file, if present.
ifneq ($(NO_CUSTOM_EXTENSIONS), true)
CUSTOM_PRE_NAME := $(subst .gmk,-pre.gmk, $(THIS_INCLUDE))
$(eval $(call IncludeCustomExtension, $(CUSTOM_PRE_NAME)))
endif
else
INCLUDE := false
endif
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