[Eli Frey <xiu.got.this@gm...>]

Hello again,

I contacted this group before, seeking help binding
cairo_image_surface_create_for_data in Haskell.  After leaving this
idea alone for a while I have come back to it and gotten something
working.

Please find attached a patch for your consideration and a demo
application demonstrating the two new user-facing functions.  The most
invasive thing the patch does is to define and export a new type
synonym for pointers to unsigned char, though this is hardly necessary
and a question of taste.  Otherwise I hope it is close to acceptable
as is.