gi: don't try to directly allocate structs that we don't know the size of
gi: don't try to directly allocate structs that we don't know the size of

https://bugzilla.gnome.org/show_bug.cgi?id=652880

mtwebster/cjs,pixunil/cjs,mtwebster/cjs,djdeath/gjs,endlessm/gjs,pixunil/cjs,djdeath/gjs,pixunil/cjs,mtwebster/cjs,mtwebster/cjs,endlessm/gjs,djdeath/gjs,mtwebster/cjs,magcius/gjs,endlessm/gjs,pixunil/cjs,endlessm/gjs,magcius/gjs,pixunil/cjs,magcius/gjs,djdeath/gjs,magcius/gjs,magcius/gjs,djdeath/gjs,endlessm/gjs