Add a run script for cross-compilers

I tend to forget things. This script should help me to remember how the
proxy can be used to test a cross-compiler.

Author: supersven

run.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+# Simple script to build and start the proxy. The printed args show how to use
+# it for testing a cross-compiler on the same machine.
+
+set -e
+
+GHC="${GHC:-ghc}"
+port=5005
+
+cabal build -w "$GHC" exe:iserv-proxy
+echo ghc-args: -fexternal-interpreter -pgmi=$(cabal list-bin -w "$GHC" exe:iserv-proxy) -opti=127.0.0.1 -opti=$port
+cabal run -w "$GHC" iserv-proxy-interpreter $port .