Сабж. Только меня не хватило на этот абзац:
If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If at some point `config.cache' contains results you don't want to keep, you may remove or edit it.
Как бы это перевести получше? :)
PS. Линк