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escape = $(subst ','\'',$(1))
cwd := $(shell basename -- "$$( pwd )")
export cwd
inner_var := Inner variable
outer_var := Outer variable - $(inner_var) - $(cwd)
echo_cwd := printf '%s\n' '$(call escape,$(cwd))'
bash_cwd := bash -c '$(call escape,$(echo_cwd))'
echo_outer_var := printf '%s\n' '$(call escape,$(outer_var))'
.PHONY: test
test:
@printf '%s\n' '$(call escape,$(cwd))'
@printf '%s\n' "$$cwd"
@bash -c '$(call escape,$(echo_cwd))'
@bash -c '$(call escape,$(bash_cwd))'
@printf '%s\n' '$(call escape,$(outer_var))'
@bash -c '$(call escape,$(echo_outer_var))'
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