hep! kernel upgrade, perlmagick libraries kaflooey

[will trillich <will@serensoft.com>]

i had perlmagick/libmagic/imagemagic working nicely
under 2.0.17 and now that i'm on 2.2.17 (and did a
clean install with lots of apt-get install) i can't
get my annotation function to work -- 

my sources.list hasn't changed any, only my kernel,
but i did download fresh copies of just about everything...

puz::showImage(show.cgi:76):            my $i=Image::Magick->new;
DB<1> s
puz::showImage(show.cgi:77):            $i->Read($img);
DB<1> s
puz::showImage(show.cgi:78):            $i->Annotate(
puz::showImage(show.cgi:79):                    text     =>  "$msg",
puz::showImage(show.cgi:80):                    pointsize=>  '10',
puz::showImage(show.cgi:81):                    pen      =>  'gray',
puz::showImage(show.cgi:82):                    gravity  =>  'South',
puz::showImage(show.cgi:83):                    font     =>  "\@$ttf",
puz::showImage(show.cgi:84):                    )
puz::showImage(show.cgi:85):                            if $msg;
DB<1> s
sh: /usr/bin/gs: No such file or directory
sh: /usr/bin/gs: No such file or directory
sh: /usr/bin/gs: No such file or directory
sh: /usr/bin/gs: No such file or directory

and there it hangs.

1) what package supplies 'gs'? (called from a SHELL script?)
2) why can't i single-step into the routine there?
3) is there an alternative to perlmagick for annotating
   images?