Although the instructions to install it on Linux are there on the above link but they didn't work quite well on my recent install because of Simpleparse. I contacted the author and he sent me the instructions to compile it. So here are they in a user friendly manner.
According to the Gerbmerge website, Gerbmerge requires following:
* Python version 2.4 or later
* eGenix mxBase tools version 2.0.4 or later
* SimpleParse version 2.0.0 or later
Ubuntu Jaunty installs Python 2.6 by default so that's not a problem. According to SimpleParse author Mike Fletcher, the current source of simpleParse includes mxBase tools so getting them from eGenix is not necessary. So in all, we just have to install SimpleParse and then install Gerbmerge.
Installation Steps
Prerequisites:
Before we install SimpleParse we have to install a few packages from Ubuntu repository.
Python-dev - to get Python.h as it is needed to compile SimpleParse
python-setuptools - SimpleParse compile needs setuptools
build-essential - Needed to compile SimpleParse
bzr - Needed to get latest snapshot for SimpleParse from LaunchPad
To install all these issue the following command on ububtu console:
sudo apt-get install python-dev python-setuptools build-essential bzr
Get and Install SimpleParse:
According to the author, get simpleparse from bzr release. CVS snapshot and the latest release don't work.
bzr branch lp:simpleparse
cd simpleparse
python setup.py build_ext --inplace --force
sudo python setup.py install
cd tests
python test.py
The above instructions will install and test SimpleParse.
Get and Install Gerbmerge:
Download Gerbmerge from http://claymore.engineer.gvsu.edu/%7Esteriana/Software/gerbmerge-1.6.tar.gz
tar zxf gerbmerge-1.6.tar.gz
cd gerbmerge-1.6
sudo python setup.py install
After installation, Gerbmerge doesn't run as it can't find site-packages/gerbmerge so couple of soft-links are needed.
cd /usr/local/lib/python2.6/site-packages
sudo ln -s ../dist-packages/gerbmerge
cd /usr/lib/python2.6
sudo ln -s /usr/local/lib/python2.6/site-packages
The prerequisites build-essential, bzr etc. can be removed at this point if needed. Now you should be able to run gerbmerge from console.

