Created attachment 38775 [details]
small patch to build 1.4.0 dbus on Windows 7

In dbus/dbus-sockets-win.h, a sanity check is failing. The sanity check is checking for the presence of some #define from errno.h that should not be present on windows. However, they do seem to be present when developing on Windows 7.

  #if defined(EPROTONOSUPPORT) || \
      defined(EAFNOSUPPORT) || \
      defined(EWOULDBLOCK)
! #error This does not look like Win32 and the Microsoft C library
  #endif

See http://msdn.microsoft.com/en-us/library/5814770t.aspx.
Attached is a patch where I commented out the sanity check, but it probably requires more investigation and proper removal/fix.