I recommend a hand-crafted configure script, which provides the same usage interface to package builders, without Autocrap:<p>E.g.:<p><a href="http:&#x2F;&#x2F;www.kylheku.com&#x2F;cgit&#x2F;txr&#x2F;tree&#x2F;configure" rel="nofollow">http:&#x2F;&#x2F;www.kylheku.com&#x2F;cgit&#x2F;txr&#x2F;tree&#x2F;configure</a>