Hi everyone. I've noticed that guile-cairo's cairo-mask-surface() expects 2 arguments instead of 4. I came up with a patch.
Apply it with: `patch guile-cairo/guile-cairo.c guile-cairo.c.patch`
812c812 < SCM_DEFINE_PUBLIC (scm_cairo_mask_surface, "cairo-mask-surface", 2, 0, 0, --- > SCM_DEFINE_PUBLIC (scm_cairo_mask_surface, "cairo-mask-surface", 4, 0, 0,
