Fix in hsgclosure.c #ifdef magic so it now works with ghc-6.5
Fix in hsgclosure.c #ifdef magic so it now works with ghc-6.5

gtk2hs/webkit,gtk2hs/gtksourceview,gtk2hs/vte,gtk2hs/webkit,gtk2hs/vte,gtk2hs/gstreamer,gtk2hs/gtksourceview,gtk2hs/webkit