Run ./configure with desired options
(see ./configure --help for their list)
Then run `make' and `make install'

If you're building from CVS:
First run ./bootstrap.sh
Note that this creates fake documentation files.
To produce real docs you need to compile and install Tensile, then
delete doc files and re-install it. This is necessary since Tensile docs
are extracted from its sources with `docstrip' utility written in Tensile itself.
In fact, I would recommend that you first build from some distribution and then
upgrade with CVS.
