The fix for this is trivial. Can be done with an sed. I'll have to look in my scripts. Should be done within the next couple days.
The include dir thing I mentioned in that thread is not a bug. Some packages using libexif (such as libgphoto2 and gthumb) had been inconsistent in there inclusion of libexif headers. I.e., sometimes
#include <libexif/exif.h>
and other times
#include <exif.h>
I think this became a problem because before the .pc files were added, packages were always adding -I/usr/include/libexif or equivalent to the command line.
This has been cleared up in gthumb for sure. Possibly libgphoto2, too, but I don't recall immediately.
