Hello, libexif-gtk sets GTK_DISABLE_DEPRECATED in its makefiles, unfortunately it also relies on parts of the GTK+ API which have been tagged as deprecated in the 2.12 branch of the library. As a result, trying to emerge this package results in compilation failing after a series of errors, the first being the message "expected specifier-qualifier-list before 'GtkTooltips'". Enclosed you will find a patch which removes -DGTK_DISABLE_DEPRECATED from Makefile.am and Makefile.in files containing them, along with another patch making the former used in the package's ebuild.
Created attachment 132522 [details, diff] libexif-gtk-0.3.5-gtk2.12.patch
Created attachment 132523 [details, diff] Makes the current ebuild use libexif-gtk-0.3.5-gtk2.12.patch
thanks, fixed in libexif-gtk-0.3.5-r2