PostGIS error building with `make` in ./extensions: nothing to be done for 'comments'
You need xsltproc,

16:02 &lt; robe2&gt; EvanCarroll: Looks like you are probably missing xsltproc


Install xsltproc (instructions in Ubuntu/Debian)

sudo apt-get install xsltproc;


Then,

make distclean;
./autogen.sh;
make;


And try again. It should work.