configure: "else if" -> "elif"
configure.ac has a one case of "else if" instead of "elif". It's also such that it makes the structure significantly more complex then further "elif"s are on the level of that new "if" and not the original one.
configure.ac has a one case of "else if" instead of "elif". It's also such that it makes the structure significantly more complex then further "elif"s are on the level of that new "if" and not the original one.