GParted (sys-block/gparted-0.23.0) crashes due to a bug in libparted (from sys-block/parted-3.2) when trying to resize a FAT16 partition. See https://bugzilla.gnome.org/show_bug.cgi?id=735669 for discussion. Patch is in upstream Git repository: http://git.savannah.gnu.org/cgit/parted.git/patch/?id=1e9e770f4bc7f3d80e09ecd1df58575fad064163 I tested it, it works with sys-block/parted-3.2, the GParted crash is gone. Simply apply it after the two other patches in the ebuild.
Patch applied in 3.2-r1. Thanks for the report.