We debate how the scaling properties of the angular correlation function w(
theta) depend on luminosity segregation. Under the approximation that there
is no deviation from Euclidean geometry and no evolution, we find that the
scaling with catalog depth (D-*) is the same both for a luminosity (L) ind
ependent clustering length (r(0)) and for a generic dependence of r(0) on L
. Recent angular data, however, extend to depths where the above approximat
ion is unsuitable and the simple scaling w proportional to D-*(-gamma) shou
ld be modified. We find that such modifications depend on the shape of the
L-dependence of r(0) and are indeed different depending on whether luminosi
ty segregation is or is not considered. In particular, we find that a lumin
osity segregation as observed at z = 0 causes effects of the same order as
varying the rate of clustering evolution. For the sake of example, we apply
our expressions to available angular galaxy data in the B- and R-bands and
show that significant constraints on the evolution of clustering can alrea
dy be found with public data.