Some Windows warnings fixes

4 patches for repository darcs-unstable@darcs.net:screened:

patch da42337bde95e8986d5cabbc1b2344dcf0104fe1
Author: Ganesh Sittampalam <ganesh@earth.li>
Date:   Sun Nov 18 15:17:52 GMT 2018
  * fix warning on Windows about noWorkingSendmail being unused

patch 339000e7cb9cb5302b29e1fc2916eaac76556d31
Author: Ganesh Sittampalam <ganesh@earth.li>
Date:   Sun Nov 18 15:19:51 GMT 2018
  * fix warning on Windows about GHC.IO.Encoding being unused

patch e466a2aa71551879934e2df0104af5a3166b9b7d
Author: Ganesh Sittampalam <ganesh@earth.li>
Date:   Sun Nov 18 21:57:05 GMT 2018
  * bump Win32 upper bound to support 2.4.x, 2.5.x, 2.6.x
  
  Although 2.7 and 2.8 are available, process doesn't support them
  so there's no install plan to test with

patch 1bd0fff55cbc1565d0922b8bea96be6750abdf34
Author: Ganesh Sittampalam <ganesh@earth.li>
Date:   Sun Nov 18 21:58:03 GMT 2018
  * fix warning on Windows x64

Attachments

• fix-warning-on-windows-about-noworkingsendmail-being-unused.dpatch
• patch-preview.txt
• unnamed

Sorry for not sending this patch earlier: could have spared you fixing the
warnings in src/win32/System/Posix/Files.hsc.

1 patch for repository http://darcs.net/screened:

patch fd73efbb68c9e3976ba308f04362e8560910f945
Author: Ben Franksen <ben.franksen@online.de>
Date:   Mon Dec  3 12:47:56 CET 2018
  * for Windows, use linkCount and createLink from unix-compat
  
  This requires lifting the lower version limit for unix-compat to 0.5.

Attachments

• for-windows_-use-linkcount-and-createlink-from-unix_compat.dpatch
• patch-preview.txt
• unnamed

Your extra patch looks fine, I'm going to mark the whole bundle as
reviewed as my changes are simple and noone else is likely to test
them anyway :-)