Missing dependencies (e.g. flex) on Ubuntu 13.04

[natevw]

Recently upgraded the default Amazon quicklaunch "Ubuntu" machine (non-LTS) to whatever release it wanted to be at and had to add a bunch of dependencies before this would build now.

The README says to sudo apt-get install help2man make gcc zlib1g-dev libssl-dev rake help2man texinfo however after doing that I would get messages like:

Build CouchDB commit: 4363966b0d359a3200797bddf78fd784ae96628d
##
## Missing package: flex
##
## Try: sudo apt-get -y install flex
##
rake aborted!
Missing package: flex

Tasks: TOP => default => couchdb:build => couchdb:couchdb => erlang:build => build:os_dependencies => build:ubuntu_dependencies
(See full trace by running task with --trace)

It started getting to work once I'd done the equivalent of sudo apt-get install flex dctrl-tools libsctp-dev libxslt1-dev libcap2-bin in addition to the original list from the README.

[natevw]

I could submit a pull request on the README if you'd like, but this seems like a strange set of stuff (half of which I have no idea what it is or what needs it) that I'm wondering if there's some one missing parent dependency or something that would be more appropriate instead.

[natevw]

See also issue #79, towards the end (at least one can hope 😄) of the build I get:

Can't exec "aclocal": No such file or directory at /home/natevw/build-couchdb/build/share/autoconf-2.62/autoconf/Autom4te/FileUtils.pm line 326.
autoreconf: failed to run aclocal: No such file or directory

Trying again now after doing sudo apt-get install automake autoconf.

[natevw]

Success. Executive summary:

To build CouchDB on Ubuntu 13.04 you need the following dependencies:

sudo apt-get install help2man make gcc zlib1g-dev libssl-dev rake help2man texinfo flex dctrl-tools libsctp-dev libxslt1-dev libcap2-bin automake autoconf

Is this to be expected? If so we should get this into the README (looks like there's an open pull request for at least some of these).