Problems when building the latest git master with MSVC

[John Emmas <johne53 tiscali co uk>]

Problem #1:-  When building today's git master of 'gio/gsocket.c' (with 
MSVC) I'm seeing compiler errors in the function 
'input_message_from_msghdr()'.  The errors are all broadly similar and 
take the following form:-

..\gio\gsocket.c (line 3961) : error C2037: left of 'msg_name' specifies 
undefined struct/union 'msghdr'

That function - 'input_message_from_msghdr()' - looks similar 
(conceptually) to 'input_message_to_msghdr()' and also to 
'output_message_to_msghdr()'.  But one crucial difference is that those 
latter two are getting implemented as #defines (whereas the first one is 
getting implemented as an actual function).  AFAICT none of them 
actually gets used if G_OS_WIN32 is defined (although the function 
itself does get included in a compilation).

So should the first one be getting implemented like the other two? Or 
should it be getting guarded with #ifndef G_OS_WIN32?  Or should we be 
declaring a 'msghdr' struct somewhere?  Whatever's wrong, it looks like 
this must have happened very recently.

Problem #2:-  Line 4469 (of the same file) calls 
'g_socket_send_message_with_timeout()' which my linker reports as an 
unresolved symbol.  Where does that function come from?  Thanks.

John