1set -e
 2
 3if [ "$#" -lt 3 ] ; then
 4	printf 'usage: %s var out command...\n' "$0" >&2
 5	exit 2
 6fi
 7
 8var=$1
 9out=$2
10shift 2
11if "$@" 2>"$out.log" ; then
12	echo "#define $var 1"
13fi >"$out"