[Foucault-L] Lust instead of labour?

Hi there,

does anyone of the list can give me a tip where I can find
a statement by Foucault he made, after he was asked something about
Marx.

Foucault statement was something like this: 'I am ready with marx. you
know why? marx is only analyzing labour. but where is the lust? one
has to analyse the function of lust...'

well that is all can remember.

any hints?

thanks
Marcus