Radix cross Linux Toolchains for ARC architecture

Index: Makefile
===================================================================
--- Makefile	(nonexistent)
+++ Makefile	(revision 5)
@@ -0,0 +1,48 @@
+
+
+COMPONENT_TARGETS = $(TOOLCHAIN_NOARCH)
+
+
+include ../../build-system/config.mk
+
+
+url         = $(DOWNLOAD_SERVER)/sources/tools/synopsys/arc-toolchain/binutils-gdb
+
+versions    = arc-2020.03.18
+
+pkgname     = binutils-gdb
+
+tarballs    = $(addsuffix .tar.xz, $(addprefix $(pkgname)-, $(versions)))
+sha1s       = $(addsuffix .sha1sum, $(tarballs))
+
+
+BUILD_TARGETS = $(tarballs) $(sha1s)
+
+
+include ../../build-system/core.mk
+
+
+.PHONY: download_clean
+
+
+$(tarballs):
+	@echo -e "\n======= Downloading source tarballs =======" ; \
+	 for tarball in $(tarballs) ; do \
+	   echo "$(url)/$$tarball" | xargs -n 1 -P 100 wget $(WGET_OPTIONS) -i & \
+	 done ; wait
+
+$(sha1s): $(tarballs)
+	@for sha in $@ ; do \
+	   echo -e "\n======= Downloading '$$sha' signature =======\n" ; \
+	   echo "$(url)/$$sha" | xargs -n 1 -P 100 wget $(WGET_OPTIONS) -i & wait %1 ; \
+	   touch $$sha ; \
+	   echo -e "\n======= Check the '$$sha' sha1sum =======\n" ; \
+	   sha1sum --check $$sha ; ret="$$?" ; \
+	   if [ "$$ret" == "1" ]; then \
+	     echo -e "\n======= ERROR: Bad '$$sha' sha1sum =======\n" ; \
+	     exit 1 ; \
+	   fi ; \
+	 done
+
+download_clean:
+	@rm -f $(tarballs) $(sha1s)