Add libsodium to the tree and build what's needed from source.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3859 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/libsodium/test/default/wasi-test-wrapper.sh

@@ -0,0 +1,73 @@
+#! /bin/sh
+
+MAX_MEMORY_TESTS="67108864"
+
+unset LDFLAGS
+unset CFLAGS
+
+if command -v wasm-opt >/dev/null; then
+  wasm-opt -O4 -o "${1}.tmp" "$1" && mv -f "${1}.tmp" "$1"
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wavm" ]; then
+  if command -v wavm >/dev/null; then
+    wavm run --abi=wasi "$1" && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wasmtime" ]; then
+  if command -v wasmtime >/dev/null; then
+    wasmtime run --dir=. "$1" && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wasmer" ]; then
+  if command -v wasmer >/dev/null; then
+    wasmer run "$1" "--${WASMER_BACKEND:-cranelift}" --dir=. && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wasm3" ]; then
+  if command -v wasm3 >/dev/null; then
+    wasm3 "$1" && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "iwasm" ]; then
+  if iwasm | grep -qi wasi >/dev/null 2>&1; then
+    iwasm "$1" && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "ssvm" ]; then
+  if command -v ssvmc >/dev/null && command -v ssvm >/dev/null; then
+    ssvmc "$1" "${1}.so" &&
+      ssvm --dir=.:. "${1}.so" &&
+      rm -f "${1}.so"
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "node" ]; then
+  if echo | node --experimental-wasi-unstable-preview1 >/dev/null 2>&1; then
+    {
+      echo "import fs from 'fs'; import { WASI } from 'wasi';"
+      echo "const wasi = new WASI({args: process.argv, env: process.env, preopens: {'.':'.'}});"
+      echo "const importObject = { wasi_snapshot_preview1: wasi.wasiImport };"
+      echo "const wasm = await WebAssembly.compile(fs.readFileSync('${1}'));"
+      echo "const instance = await WebAssembly.instantiate(wasm, importObject);"
+      echo "wasi.start(instance);"
+    } >"${1}.mjs"
+    cat "${1}.mjs" >/tmp/a
+    node --experimental-wasi-unstable-preview1 "${1}.mjs" 2>/tmp/err &&
+      rm -f "${1}.mjs" && exit 0
+  fi
+fi
+
+if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "wasmer-js" ]; then
+  if command -v wasmer-js >/dev/null; then
+    wasmer-js run "$1" --dir=. && exit 0
+  fi
+fi
+
+echo "WebAssembly runtime failed" >&2
+exit 1