Radix cross Linux 3pp sources

diff --git a/packages/n/nn/Makefile b/packages/n/nn/Makefile
new file mode 100644
index 0000000..73fa155
--- /dev/null
+++ b/packages/n/nn/Makefile
@@ -0,0 +1,42 @@
+#
+# Project Home:
+# ============
+# http://www.nndev.org
+#
+# Downloads:
+# =========
+# http://www.nndev.org/pub/nn-6.7/nn-6.7.3.tar.Z
+# ftp://ftp.openbsd.com/ports/distfiles
+#
+
+url         = http://www.nndev.org/pub/nn-6.7
+
+versions    = 6.7.3
+pkgname     = nn
+suffix      = tar.bz2
+
+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)-$$version.tar.Z ; \
+	  uncompress -c $(pkgname)-$$version.tar.Z | tar xf - ; \
+	  tar cjf $(pkgname)-$$version.$(suffix) $(pkgname)-$$version ; \
+	  rm -rf $(pkgname)-$$version $(pkgname)-$$version.tar.Z ; \
+	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)