RVM install issue - Unable to execute port (autoco

I'm trying to install Jekyll on OSX mountain lion. First of all I wanted to install RVM and then the latest ruby. However, the RVM install is failing and I can't solve the problem. Any help appreciated

Here is what I did:

Installed OSX Command Line Tools
Attempted to install RVM (\curl -L https://get.rvm.io | bash -s stable --ruby) but it failed with an error in the log "Error: Please install Xcode and/or run xcode-select to specify its location."
Installed XCode to see if that would help (realise now I could have used xcode-select oh well)
Attempted to install RVM again but it failed again, see error below

Last lines of install output including error:

Installing required packages: autoconf, automake, libtool, pkgconfig, apple-gcc42, libiconv, libyaml, libffi, readline, libxml2, libxslt, libksba, openssl, curl-ca-bundle, sqlite3, zlib, gdbm, ncurses...

Error running 'requirements_osx_port_libs_install autoconf automake libtool pkgconfig apple-gcc42 libiconv libyaml libffi readline libxml2 libxslt libksba openssl curl-ca-bundle sqlite3 zlib gdbm ncurses', please read /Users/xxx/.rvm/log/1371125385_package_install_autoconf_automake_libtool_pkgconfig_apple-gcc42_libiconv_libyaml_libffi_readline_libxml2_libxslt_libksba_openssl_curl-ca-bundle_sqlite3_zlib_gdbm_ncurses.log

I opened the error log and it states:

Error: Unable to execute port: Could not open file: /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/devel/autoconf/Portfile

This is probably obvious to someone else but frankly I'm not sure what I'm supposed to do to fix it!

Installing homebrew and then running rvm autolibs brew, then rvm requirements fixed my problem. I was then successfully able to install the latest ruby (rvm install 2.0.0-p195).

Still think it's hilarious I've installed Xcode, rvm, homebrew and ruby just to build a static html site :-)