How do you really go about this? Where did you get your compiler? Where did you get autotools? My point is that OSX doesn't contain the basic requirements for bootstrapping by default anymore.
You install the 'XCode Command Line Tools' as provided by Apple, or one of a number of third-party packages.
Similarly, on many unices, you will need to install a compiler (and particularly autotools); they are not always part of a default install, which may be just as well.
Also, OSX does contain the basic requirements: install XCode from the app store.