Radix cross Linux 3pp sources

#
# Project Home:
# ============
# https://github.com/rockdaboot/libpsl
#
# GitHub:
# ======
# https://github.com/rockdaboot/libpsl
#
# Download:
# ========
# https://github.com/rockdaboot/libpsl/releases/download/${VERSION}/libpsl-${VERSION}.tar.gz
#
# Clone:
# =====
# https://github.com/rockdaboot/libpsl.git
#

url        = https://github.com/rockdaboot

versions    = 0.21.1

pkgname     = libpsl
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 tarball in $(tarballs) ; do \
	  version=`echo $$tarball | sed 's/\([a-zA-Z-]*\)\([0-9][.][0-9]*[.][0-9]*\)\([\.].*\)/\2/'` ; \
	  wget -N $(url)/$(pkgname)/releases/download/$${version}/$${tarball} ; \
	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)