added build.sh

build.sh

+#!/bin/bash
+
+set -e
+
+export TIMECMD="time -f \t%es\t%P"
+
+if [[ "${1##*.}" == "c" ]]; then
+    dune exec -- refinedc check --no-build "$1"
+    cd "$(dirname $1)/proofs/$(basename $1 .c)"
+    dune build --display short
+else
+    dune build --display short "$@"
+fi