Due to an error in header inclusion vs defines, gnome-control-center manages to expose an error:

[   35s] libgd/gd-types-catalog.c:29:40: fatal error: gd-toggle-pixbuf-renderer.h: No such file or directory


The general issue is:
Makefile.am
if LIBGD__VIEW_COMMON
view_common_sources =				\
	libgd/gd-main-view-generic.c		\
	libgd/gd-main-view-generic.h		\
	libgd/gd-styled-text-renderer.c		\
	libgd/gd-styled-text-renderer.h		\
	libgd/gd-two-lines-renderer.c		\
	libgd/gd-two-lines-renderer.h		\
	$(NULL)
endif

if LIBGD_MAIN_ICON_VIEW
main_icon_view_sources =			\
	libgd/gd-main-icon-view.c		\
	libgd/gd-main-icon-view.h		\
	libgd/gd-toggle-pixbuf-renderer.c	\
	libgd/gd-toggle-pixbuf-renderer.h	\
	$(NULL)
endif

versus gd.h:
#ifdef LIBGD__VIEW_COMMON
# include <libgd/gd-main-view-generic.h>
# include <libgd/gd-styled-text-renderer.h>
# include <libgd/gd-toggle-pixbuf-renderer.h>
# include <libgd/gd-two-lines-renderer.h>
#endif

=> gd-toggle-pixbuf-renderer.h is only added to the resulting tarballs when LIBGD_MAIN_ICON_VIEW is defined, but it is being used when LIBGD__VIEW_COMMON is being defined already.