#!/bin/sh
set -e

cd library/cards-oxymoron/cards/src

perl -pe <make-cards >make-cards.massaged '
	s{^#! */usr/bin/perl}{$& -w};
	print "sub xsystem { \$?=0; \$!=0; system \@_ and die \"$! $?\"; }\n"
		if !m/\S/ && !$done++;
	s{\bsystem\(}{x$&}g;
'
chmod +x ./make-cards.massaged
./make-cards.massaged