test.write('SConstruct', """
MyBuild = Builder(name = "MyBuild",
- action = "python build.py %(target)s")
+ action = "python build.py $targets")
env = Environment(BUILDERS = [MyBuild])
env.MyBuild(target = '-f1.out', source = 'f1.in')
env.MyBuild(target = '-f2.out', source = 'f2.in')