Add Nettle v3.4.1

Nettle/build_tarballs.jl

@@ -0,0 +1,34 @@
+using BinaryBuilder
+
+# Collection of sources required to build Nettle
+name = "Nettle"
+version = v"3.4.1"
+sources = [
+    "https://ftp.gnu.org/gnu/nettle/nettle-$(version).tar.gz" =>
+    "f941cf1535cd5d1819be5ccae5babef01f6db611f9b5a777bae9c7604b8a92ad",
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir/nettle-*/
+./configure --prefix=$prefix --host=$target
+make -j${nproc}
+make install
+"""
+
+# These are the platforms we will build for by default, unless further
+# platforms are passed in on the command line
+platforms = supported_platforms()
+
+# The products that we will ensure are always built
+products(prefix) = [
+    LibraryProduct(prefix, "libnettle", :libnettle),
+    ExecutableProduct(prefix, "nettle-hash", :nettle_hash)
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = [
+]
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies)