provide -mwindows option like gcc
provide a command line option -mwindows (aka main windows) to compile and link the code as a windows executable (i.e. WinMain). This is mearly a matter of passing through the option to gcc and would be trivial to implement. see #2459 (closed) for full discussion.
Why Bother ?
To enahnce "User Friendliness" and encourage gui users on win32 aka wxHaskell and Gtk2Hs users to produce application with "Native" look and feel.