integrating sketch with mactex

[UnlimitedMoops]

hi..

Currently I've built sketch from scratch. It creates the correct PDF if I run it like this.

CODE: SELECT ALL  •  OPEN IN WRITELATEX

sketch -T sample.sk -o sample.tex
pdflatex sample.tex

Now I'm trying to integrate it into MacTeX. I think I want to get LaTeXmk to launch it then run pdfLaTeX on the resulting .tex file but so far no luck. I've modified .latexmkrc in the same directory as follows:

CODE: SELECT ALL  •  OPEN IN WRITELATEX

add_cus_dep('sk', 'tex', 0, 'makesketch');
sub makesketch {
    system("sketch -T '$_[0]'.sk -o '$_[0]'.tex");
    system("pdflatex '$_[0]'.tex");
}

So far no luck. On running "latexmk -pdf" with just "example.sk" in the directory I get:

CODE: SELECT ALL  •  OPEN IN WRITELATEX

Subroutine makesketch redefined at (eval 16) line 2, <GEN1> chunk 1.
Latexmk: This is Latexmk, John Collins, 11 Nov. 2012, version: 4.35.
**** Report bugs etc to John Collins <collins at phys.psu.edu>. ****

Latexmk: No file name specified, and I couldn't find any

Can someone help me to get this working?

thanks!

[Gene]

I don't use latexmk, so can't offer a solution.  The error message you're getting is from perl, obviously complaining about a redefinition of the name of your sub.  Did you by chance put the same definition in two different latexmkrc files?

If that was not the problem, then your best bet is to try the StackExchange for LaTeX or maybe a MacTeX-specific forum.