Makefile-获取传递给make的参数

我有一个像这样的makefile：

.SILENT: #don't echo commands as we run them.

###
# here, set $1 (in the latter bash script) to the first make arg.
# $2 to the second one.
# et cetera.
# ($0 being set properly is optional)
###

foo:
    echo "you passed to make: $1 $2 $3 $4 $5 $6"

所以我可以做：

make foo
You passed to make: foo

（不要告诉任何人，但我正在创建“给我做三明治”的东西）