Radix cross Linux 3pp sources

#
# Project Home:
# ============
# https://ntp.org
#
# Downloads:
# =========
# https://archive.ntp.org/ntp4/ntp-4.2
#

url         = https://archive.ntp.org/ntp4/ntp-4.2

versions    = 4.2.6p5 4.2.8p6 4.2.8p8 4.2.8p13 4.2.8p15

pkgname     = ntp
suffix      = tar.gz

tarballs    = $(addsuffix .$(suffix), $(addprefix $(pkgname)-, $(versions)))
signatures  = $(addsuffix .md5, $(tarballs))
sha1s       = $(addsuffix .sha1sum, $(tarballs))


all: $(tarballs) $(signatures) $(sha1s)

.PHONY: downloads_clean

$(tarballs):
	@echo -e "\n======= Downloading source tarballs =======\n"
	@for tarball in $(tarballs) ; do \
	  wget -N $(url)/$$tarball ; \
	done

$(signatures): %.$(suffix).asc : %.$(suffix)
	@for signature in $@ ; do \
	  echo -e "\n======= Downloading '$$signature' signature =======\n" ; \
	  wget -N $(url)/$$signature ; \
	  touch $$signature ; \
	done

$(sha1s): %.$(suffix).sha1sum : %.$(suffix)
	@for tarball in $< ; do \
	  echo -e "\n======= Calculation the '$$tarball' sha1sum =======\n" ; \
	  sha1sum --binary $$tarball > $$tarball.sha1sum ; \
	done

downloads_clean:
	@rm -rf $(tarballs) $(signatures) $(sha1s)