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#
# A Makefile with a collection of reusable functions.
#
# Copyright (C) 2009, Cisco Systems Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Garrett Cooper, July 2009
#
SQUOTE := '
# ' # to keep colorized editors from going nuts
MAKE_3_80_realpath = $(shell $(top_srcdir)/scripts/realpath.sh '$(subst $(SQUOTE),\\$(SQUOTE),$(1))')
MAKE_3_80_abspath = $(shell $(top_srcdir)/scripts/abspath.sh '$(subst $(SQUOTE),\\$(SQUOTE),$(1))')
#
# NOTE (garrcoop):
#
# The following functions are (sometimes) split into 3.80 and 3.81+
# counterparts, and not conditionalized inside of the define(s) to work around
# an issue with how make 3.80 evaluates defines.
#
# SO DO NOT INTERNALIZE CONDITIONALS IN DEFINES OR YOU WILL BREAK MAKE 3.80!
#
#
# Generate an install rule which also creates the install directory if needed
# to avoid unnecessary bourne shell based for-loops and install errors, as well
# as adhoc install rules.
#
# 1 -> Target basename.
# 2 -> Source directory.
# 3 -> Destination directory.
#
ifdef MAKE_3_80_COMPAT
define generate_install_rule
INSTALL_FILES += $$(call MAKE_3_80_abspath,$$(DESTDIR)/$(3)/$(1))
$$(call MAKE_3_80_abspath,$$(DESTDIR)/$(3)/$(1)): \
$$(call MAKE_3_80_abspath,$$(dir $$(DESTDIR)/$(3)/$(1)))
install -m $$(INSTALL_MODE) "$(2)/$(1)" "$$@"
endef
else # not MAKE_3_80_COMPAT
define generate_install_rule
INSTALL_FILES += $$(abspath $$(DESTDIR)/$(3)/$(1))
$$(abspath $$(DESTDIR)/$(3)/$(1)): \
$$(abspath $$(dir $$(DESTDIR)/$(3)/$(1)))
install -m $$(INSTALL_MODE) "$(2)/$(1)" "$$@"
endef
endif # END MAKE_3_80_COMPAT
#
# Set SUBDIRS to the subdirectories where Makefiles were found.
#
define get_make_dirs
SUBDIRS ?= $$(subst $$(abs_srcdir)/,,$$(patsubst %/Makefile,%,$$(wildcard $$(abs_srcdir)/*/Makefile)))
SUBDIRS := $$(filter-out $$(FILTER_OUT_DIRS),$$(SUBDIRS))
endef
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