[OS X TeX] pdftex.def patch query

[Gary L. Gray]

Hi. I am cross-posting this to both the MacTeX list as well as the  
TeX on Mac OS X list since I think these both of these audiences  
might be interested the patch and/or answer to my question. I  
apologize if you get two copies.

Heiko Oberdiek has released a patch for pdftex.def that, among other  
things, adds a color stack to pdftex (Yay!). See:

<http://sarovar.org/tracker/index.php? 
func=detail&aid=603&group_id=106&atid=495>

Since the lack of a color stack has given me trouble in the past, I  
would like to implement this patched version immediately. With that  
said, I can use it by simply putting it in (and I have done so and it  
works):

~/Library/texmf/tex/latex/graphics/pdftex.def

and TeX will load it instead of the one found in:

/usr/local/teTeX/share/texmf.tetex/tex/latex/graphics/pdftex.def

Now, the question is, what is sort of "event" (for lack of a better  
term) triggers the inclusion of stuff like this in Gerben's  
distribution (and thus, the MacTeX distribution)? In particular, how  
will I know when it has been included and thus when I should remove  
it from ~/Library/...?

Thank you.

-- Gary
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