1 FOO = foo 2 FOO_SPACE_BAR:=foo bar 3 FOO_COMMA_BAR:=foo,bar 4 $(FOO_SPACE_BAR):=foo 5 $(FOO_COMMA_BAR):=foo 6 FOOREF := FOO 7 8 test: 9 echo $(origin FOO) 10 echo $(origin FOO BAR) 11 echo $(origin FOO,BAR) 12 echo $(origin UNDEFINED) 13 echo $(origin PATH) 14 echo $(origin MAKEFILE_LIST) 15 echo $(origin CC) 16 echo $(origin $(FOOREF)) 17 18 # TODO: support environment override, command line, and override. 19 # TODO: Also add more tests especially for += and ?= 20 21
