Remove GhcRtsThreaded - there's no reason to leave it in this file.
# Include the front panel code? Needs GTK+.
GhcRtsWithFrontPanel = NO
# Include the front panel code? Needs GTK+.
GhcRtsWithFrontPanel = NO
-# DEPRECATED:
-# This option is no longer used. We now always build the threaded RTS,
-# add the flag '-threaded' to GHC to get it.
-GhcRtsThreaded=@ThreadedRts@
-
################################################################################
#
# libraries project
################################################################################
#
# libraries project