proj.4 installation
proj.4 is a map projection library used by numerous fossg products.
Here is the best set of instructions I have seen.
* http://geodjango.org/docs/install.html
$ wget http://download.osgeo.org/proj/proj-4.6.1.tar.gz $ wget http://download.osgeo.org/proj/proj-datumgrid-1.4.tar.gz $ tar xzf proj-4.6.1.tar.gz $ cd proj-4.6.1/nad $ tar xzf ../../proj-datumgrid-1.4.tar.gz $ cd .. $ ./configure $ make $ sudo make install $ cd ..
Read this if you have issues.