Derrida

From Slavoj Žižek: Interrogating the Real, edited by Rex Butler and Scott Stephens (London: Continuum, 2005, 2006), p. 360:

One of Žižek's long-running, though submerged, interlocutors is Derrida. It is certainly against his deconstruction that Žižek asserts his reading of Lacan and Hegel, for example: 'the Derridean deconstructive reading of Lacan reduces the corpus of Lacan's texts to a doxa on Lacan which restricts his teaching to the framework of traditional philosophy ... Lacan supplements Derrida with the Hegelian identity as to the coincidence of opposites' (pp. 190, 194). [....]

'It is easy to see why the so-called "post-secular" turn of deconstruction, which finds its ultimate expression in a certain kind of Derridean appropriation of Levinas, is totally incompatible with Lacan ... it is symptomatic that Derrida nonetheless retains the irreducible opposition between such a spectral experience of the messianic call of justice and its "ontologization", its transposition into a set of positive legal and political measures' (pp. 314, 316). [....]