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.

If you are using Homebrew, try

brew install automake

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

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.

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.

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

I solved my autoreconf problem adding the path to my shell:

sudo pico /etc/paths

then I added the line

/sw/bin

where I found the autoreconf and autoconf files and saved everything.

Since then I can use autoreconf without any problems.

I had a similar problem, but because Homebrew moved away from the Cellar directory, but for some reasons binaries of this package were still there.

I reinstalled autoconf with the following command and autoreconf is in the right PATH now: brew reinstall autoconf