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MAKEFLAGS += --warn-undefined-variables
.DEFAULT_GOAL := all
.DELETE_ON_ERROR:
.SUFFIXES:
SHELL := bash
.SHELLFLAGS := -e -o pipefail -c
escape = $(subst ','\'',$(1))
test_var := Includes ' quote
# printf $test_var
echo_test_var := printf '%s\n' '$(call escape,$(test_var))'
# bash -c 'printf $test_var'
bash_test_var := bash -c '$(call escape,$(echo_test_var))'
test:
printf '%s\n' '$(call escape,$(test_var))'
bash -c '$(call escape,$(echo_test_var))'
bash -c '$(call escape,$(bash_test_var))'
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