cpp_prog ([SysTools.Option verb]
++ map SysTools.Option include_paths
++ map SysTools.Option hsSourceCppOpts
+ ++ map SysTools.Option target_defs
++ map SysTools.Option hscpp_opts
++ map SysTools.Option cc_opts
- ++ map SysTools.Option target_defs
++ [ SysTools.Option "-x"
, SysTools.Option "c"
, SysTools.Option input_fn