Lot of in several *.c files:

warning: cast to pointer from integer of different size
warning: cast from pointer to integer of different size

At the end, Gentoo QA complained about poor programming practices :) because of:

generated/bindings/org/gnome/pango/PangoFontMap.c:120: warning: implicit declaration of function `pango_font_map_get_shape_engine_type'
generated/bindings/org/gnome/pango/PangoContext.c:34: warning: implicit declaration of function `pango_context_new'
generated/bindings/org/gnome/pango/PangoContext.c:59: warning: implicit declaration of function `pango_context_set_font_map'

Function `pango_font_map_get_shape_engine_type' implicitly converted to pointer at generated/bindings/org/gnome/pango/PangoFontMap.c:120
Function `pango_context_new' implicitly converted to pointer at generated/bindings/org/gnome/pango/PangoContext.c:34