[Bug 1795] gnomecanvas fails to import

[Sven Herzberg via Malone]

Public bug report changed:
https://launchpad.net/malone/bugs/1795

Comment:
So the bug is that:

rb-gnomecanvas initializes gnome-canvas

gnome-canvas needs gnome-canvas-path-def and registeres it with GType

rb-gnomecanvas then tries to create its own gnome-canvas-path-def GType with the
same name (which fails), so renaming it in gnomecanvas/src/rbgnome-canvas-path-
def.c to _Rb_GnomeCanvasPathDef (add the part between the lines) helps.