vim patch for cygwin

[Luca Masini]

I'm not sure if this is the right way to submit a patch.

Anyway the attached patch should solve the problem with symbolic links.
For ex. when editing /etc/hosts we get the warning
  E303: Unable to open swap file for "hosts", recovery impossible
(/etc/hosts is a symlink in cygwin)

Regards.

Luca.

diff --recursive --unified vim-7.0.223-1/src/window.c vim-7.0.223-1-patched/src/window.c
--- vim-7.0.223-1/src/window.c	2007-03-27 17:46:56.000000000 +0200
+++ vim-7.0.223-1-patched/src/window.c	2007-04-15 03:30:44.056467200 +0200
@@ -5874,6 +5874,9 @@
 #if defined(MACOS_CLASSIC) || defined(OS2) || defined(MSDOS) || defined(MSWIN)
     slash_adjust(buf);
 #endif
+#if defined(__CYGWIN__)
+    cygwin_conv_to_posix_path( buf, buf );
+#endif
     return retval;
 }