Makefile

send:
	echo $(MESSAGE1) $(MESSAGE2)

Run

$ make send MESSAGE1=YES MESSAGE2=OK
echo YES OK
YES OK
$ make send MESSAGE1= MESSAGE2=
echo

$ make send
echo

environment variable

# specify env variables directly

$ MESSAGE1=YES MESSAGE2=OK make send
echo YES OK
YES OK

$ MESSAGE1=YES make send MESSAGE2=OK
echo YES OK
YES OK

# args overwrite env ?

$ MESSAGE1=NO MESSAGE2=NG make send
echo NO NG
NO NG
$ MESSAGE1=NO MESSAGE2=NG make send MESSAGE1=YES MESSAGE2=OK
echo YES OK
YES OK

# export env variable works

$ export MESSAGE1=YES
$ make send
echo YES
YES

$ export MESSAGE2=OK
$ make send
echo YES OK
YES OK

Ref

makefile - Passing additional variables from command line to make - Stack Overflow

JP

make コマンドに引数を渡す方法

Original by Github issue

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