copy in submodule and build.sh

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "sources"]
+	path = sources
+	url = https://github.com/google/leveldb

build.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+root=$(dirname "$0")
+
+# install nimterop, if not already installed
+if ! [ -x "$(command -v toast)" ]; then
+  nimble install -y nimterop@0.6.13
+fi
+
+# generate nim wrapper with nimterop
+toast \
+  --compile="${root}/sources/randombytes.c" \
+  --compile="${root}/sources/hazmat.c" \
+  --pnim \
+  --noHeader \
+  "${root}/sources/randombytes.h" \
+  "${root}/sources/hazmat.h" > "${root}/sss/cwrapper.nim"

sources

@@ -0,0 +1 @@
+Subproject commit 99b3c03b3284f5886f9ef9a4ef703d57373e61be