Luca Barbato

Absolutely :)

The library does not work if you try an out of tree build and should be fixed nonetheless.

You can reproduce by simply doing ``` mkdir .build cd .build {path_to_src}/configure make ```

Pull requests always welcome :)

Somehow the notification for this got lost :/

I took in the documentation changes, using `cat` is not going to work on certain targets, but printing on stderr where config.log is might be a good idea.

I'd accept a patch if you have one ready.

What are you trying to build? A testcase would be indeed enlightening :)

I do not use windows myself, how and what did you try to build on Windows?

If you want to add an option such as `configure_once` in a pull request I'd merge it immediately. Checking for Makefile existence isn't enough sadly, you'd have to account for...