build: Skip gitignore files when not building from git
build: Skip gitignore files when not building from git

There's really no point in going through the motions there.

GNOME/clutter,Distrotech/clutter,Distrotech/clutter,jigpu/clutter,GNOME/clutter,jigpu/clutter,jigpu/clutter,GNOME/clutter,GNOME/clutter,Distrotech/clutter,Distrotech/clutter,jigpu/clutter,jigpu/clutter,Distrotech/clutter,jigpu/clutter,GNOME/clutter,Distrotech/clutter