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-rw-r--r--makefile_escaping/escaping_shell.mk11
1 files changed, 8 insertions, 3 deletions
diff --git a/makefile_escaping/escaping_shell.mk b/makefile_escaping/escaping_shell.mk
index c81eb98..39fabf2 100644
--- a/makefile_escaping/escaping_shell.mk
+++ b/makefile_escaping/escaping_shell.mk
@@ -10,12 +10,17 @@ escape = $(subst ','\'',$(1))
cwd := $(shell basename -- "$$( pwd )")
export cwd
-inner_var := Inner variable
-outer_var := Outer variable - $(inner_var) - $(cwd)
-
+# printf $cwd
echo_cwd := printf '%s\n' '$(call escape,$(cwd))'
+# bash -c 'printf $cwd'
bash_cwd := bash -c '$(call escape,$(echo_cwd))'
+# Simple variable.
+inner_var := Inner variable
+# Composite variable, includes both $inner_var and $cwd.
+outer_var := Outer variable - $(inner_var) - $(cwd)
+
+# printf $outer_var
echo_outer_var := printf '%s\n' '$(call escape,$(outer_var))'
.PHONY: test