Radix cross Linux 3pp sources

#
# Project Home:
# ============
#   https://www.postfix.org
#   https://de.postfix.org
#
# Downloads:
# =========
#   http://cdn.postfix.johnriley.me/mirrors/postfix-release/index.html
#   https://de.postfix.org/ftpmirror/official/postfix-3.6.4.tar.gz
#

url         = https://de.postfix.org/ftpmirror/official

versions    = 3.4.7 3.5.9 3.6.4 3.6.8 3.7.4

pkgname     = postfix
suffix      = tar.gz

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


all: $(tarballs) $(sha1s)

.PHONY: downloads_clean

$(tarballs):
	@echo -e "\n======= Downloading source tarballs =======\n"
	@for version in $(versions) ; do \
	  wget -N $(url)/$(pkgname)-$$version.$(suffix) ;  \
	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) $(sha1s)