By default, tflag is not defined. But ikiwiki.in has -T causing build failure: perl -Iblib/lib ikiwiki.out -libdir . -setup docwiki.setup -refresh "-T" is on the #! line, it must also be used on the command line at ikiwiki.out line 1. > pm_filter removes the -T from ikiwiki.in when generating ikiwiki.out > unless NOTAINT=0 is set. I cannot reproduce your problem. --[[Joey]]