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# file : build/c/cpp-options.make
# copyright : Copyright (c) 2004-2012 Code Synthesis Tools CC
# license : GNU GPL v2; see accompanying LICENSE file
$(out_base)/%.cpp-options: c-cpp-options-expand-impl = $(if $1,cat $1 >>$2)
$(out_base)/%.cpp-options: c-cpp-options-expand = \
$(call c-cpp-options-expand-impl,$(filter %.cpp-options,$1),$2)
#@@ Asymmetry: I hide creation commands but show removals.
#
$(out_base)/%.cpp-options: c-cpp-options-force-impl = \
$(if $(subst $1,,$2)$(subst $2,,$1),FORCE)
$(out_base)/%.cpp-options: c-cpp-options-force = \
$(call c-cpp-options-force-impl,$(shell if test -f $1; then exec head -n 1 $1; fi),include: $2)
# @@ Need to incroporate prefix: into force-check. Then it will probably
# have to be non-optional.
#
ifeq ($(src_base),$(out_base))
$(out_base)/%.cpp-options: $$(call c-cpp-options-force,$$@,$$(value))
else
$(out_base)/%.cpp-options: $$(call c-cpp-options-force,$$@,$$(value)) | $$(dir $$@).
endif
@echo "include: $(value)" >$@
$(if $(strip $(prefix)),@echo "prefix: $(prefix)" >>$@)
@$(call c-cpp-options-expand,$^,$@)
# Clean.
#
$(out_base)/%.cpp-options.clean:
$(call message,rm $(basename $@),rm -f $(basename $@))
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