Radix cross Linux 3pp sources

diff --git a/packages/l/libatomic_ops/Makefile b/packages/l/libatomic_ops/Makefile
new file mode 100644
index 0000000..2220652
--- /dev/null
+++ b/packages/l/libatomic_ops/Makefile
@@ -0,0 +1,40 @@
+#
+# Project Home:
+# ============
+# http://www.hboehm.info/gc
+# https://github.com/ivmai/libatomic_ops/wiki/Download
+#
+# Downloads:
+# =========
+# http://www.ivmaisoft.com/_bin/atomic_ops
+#
+
+url         = http://www.ivmaisoft.com/_bin/atomic_ops
+
+versions    = 7.4.2 7.4.14 7.6.10
+
+pkgname     = libatomic_ops
+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 \
+	  wget -N $(url)/$$tarball ; \
+	done
+
+$(sha1s): %.$(suffix).sha1sum : %.$(suffix)
+	@for tarball in $< ; do \
+	  echo -e "\n======= Calculation the '$$tarball' sha1sum =======\n" ; \
+	  sha1sum --binary $$tarball > $$tarball.sha1sum ; \
+	done
+
+downloads_clean:
+	@rm -rf $(tarballs) $(sha1s)