[texhax] Automated package option choice possible?

[Beuthe, Thomas]

UNRESTRICTED | ILLIMITÉ

There are at least two packages that require option choices that depend on what program you are using to compile your LaTeX files:
color and hyperref.

Compile in pdflatex?  You need to use the pdftex option.
Using xelatex? You need to use xetex option, and so on.

Are there other packages that have similar requirements? (I'm curious)



My main question: Is there any way of automating the choice of options?

i.e.

if(packagebeingusedtorun=xelatex) then
  \usepackage[xetex]{color}

or something like that?

I know I could always centralize the choice to a single variable that gets set once,
but is there a way of getting away from setting this choice manually?

I'm guessing there is not since the packages themselves would have probably
done this already if it was possible, but I just wanted to throw this question out there...

Thomas
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