If the Perl used to run Makefile.PL is not first on the PATH, it will not be the one used when make is run.  The patch below fixes this.

[[done]], thanks

<pre>
--- Makefile.PL.orig    2008-06-02 10:33:41.000000000 -0500
+++ Makefile.PL 2008-06-02 10:34:00.000000000 -0500
@@ -31,7 +31,7 @@
        chmod +x ikiwiki.out

 extra_build: ikiwiki.out
-       perl -Iblib/lib $(extramodules) $(tflag) ikiwiki.out -libdir . -setup docwiki.setup -refresh
+       $(PERL) -Iblib/lib $(extramodules) $(tflag) ikiwiki.out -libdir . -setup docwiki.setup -refresh
        ./mdwn2man ikiwiki 1 doc/usage.mdwn > ikiwiki.man
        ./mdwn2man ikiwiki-mass-rebuild 8 doc/ikiwiki-mass-rebuild.mdwn > ikiwiki-mass-rebuild.man
        ./mdwn2man ikiwiki-makerepo 1 doc/ikiwiki-makerepo.mdwn > ikiwiki-makerepo.man
</pre>