PROFILE=1 turns on profiling for the build of the doc wiki. Uses Devel::Profile
-NOTAINT=1 turns off the taint flag in the ikiwiki program. (Recommended
+NOTAINT=0 turns on the taint flag in the ikiwiki program. (Not recommended
unless your perl is less buggy than mine -- see
http://bugs.debian.org/411786)
+There are also other variables supported by MakeMaker, including PREFIX,
+INSTALL_BASE, and DESTDIR. See ExtUtils::MakeMaker(3).
+
+In particular, INSTALL_BASE is very useful if you want to install ikiwiki
+to some other location, as it configures it to see the perl libraries
+there. See `doc/tips/nearlyfreespeech.mdwn` for an example of using this to
+install ikiwiki and its dependencies in a home directory.
+
All other documentation is in the ikiwiki documentation wiki, which is also
available online at <http://ikiwiki.info/>