谁能给我解释一下这段Makefile

[suntao222]

iso:
scripts/iso

burn: iso
scripts/burn

dist:
scripts/dist

fulldist:
scripts/dist full

generator:
scripts/generator

installator:
scripts/installator

pxe:
scripts/pxe

exec: iso
scripts/exec

sum: iso generator dist fulldist
scripts/sum md5sum
scripts/sum sha1sum

clean:
scripts/clean

distclean:
rm -rf .stamps build.* sources geexbox*


.PHONY: iso burn dist fulldist generator installator exec clean distclean

[john56]

很明显是用的外部脚本程序。