Install autoreconf on OS X v10.7 (Lion)?

I'm attempting to re-install Ruby 1.9.3 with a patch that will allow me to use ruby-debug.

When following the instructions and running

rvm reinstall 1.9.3 --patch debug --force-autoconf

It runs through and after applying the patch spits out:

rvm requires autoreconf to install the selected ruby interpreter however autoreconf was not found in the PATH.

Unfortunately, googling around for how to install autoreconf on OS X v10.7 (Lion) (or much information about it at all) seems to be a dead end.

Solution 1:

If you are using Homebrew, try

brew install automake

Which should also install autoconf and allow rvm to finish installing.

Solution 2:

If you want to do this using MacPorts instead of Homebrew, you can do:

sudo port install automake autoconf libtool

I had the same problem and this solved it for me.

Solution 3:

If you're using brew, then the autoreconf utility is part of the autoconf package, so install it via:

brew install autoconf

If the problem persists, consider either reinstall or link it again. Use locate autoreconf to find out where it is.

Also check if /usr/local/bin/autoreconf exists (and is linked into the right place), and you've the /usr/local/bin path added in your /etc/paths file.

Solution 4:

By downloading the .pkg file from MacPorts and installing it, it does the trick for me.