Libuv default location on Windows patch

[autcrock]

Hi there and thanks for the excellent work you are doing.

Libuv installs on Windows into C:\Program Files\libuv, which breaks a number of builds in quicklisp with dependencies on libuv, so I've patched as follows for your consideration:

@@ -1,6 +1,7 @@
(in-package :libuv)

-(cc-flags #+windows "-Ic:/include/"
+(cc-flags #+windows "-IC:/Program Files/libuv/include"

•      #+windows "-Ic:/include/"
       #+windows "-Ic:/include/uv/"
       #+darwin "-I/usr/local/include/")
  

This fix in turn breaks cffi's grovel, so I've also lodged a separate patch to fix that with the developers over there.

The patch above doesn't display properly (has a big dot in the middle etc) so I gave up I'm sorry, but the intent should be clear.

Cheers and thanks for your time

Mike Thomas