I like that it provides a single tool to configure make systems across multiple platforms. It can be a real chore to get the variables setup to work right across different *nix flavors, let alone 32bit vs 64 bit and big vs little endian machines. This does all that for you. Review collected by and hosted on G2.com.

If your system doesn't work with autoconfigure it can take a fair amount of knowledge about your platform to get all the issues sorted out. Review collected by and hosted on G2.com.