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#
# Download: https://www.gnu.org/prep/ftp.html
#
# You can use the generic url http://ftpmirror.gnu.org 
# to automatically choose a nearby and up-to-date mirror.
#
# original url: https://ftp.gnu.org/gnu/gmp/gmp-$(version)
#

url         = https://ftp.gnu.org/gnu/gmp

versions    = 6.1.0 6.1.1 6.1.2 6.2.0 6.2.1 6.3.0

suffix      = tar.xz

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

all: $(tarballs) $(sha1s)

.PHONY: downloads_clean

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

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

$(filter %.tar.bz2.sha1sum,$(sha1s)): %.tar.bz2.sha1sum : %.tar.bz2
	@for tarball in $< ; do \
	  echo -e "\n======= Calculation the '$$tarball' sha1sum =======\n" ; \
	  sha1sum --binary $$tarball > $$tarball.sha1sum ; \
	done

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