Avoid potential GCC "missing function prototype...
Correct prototypes for _wfindfirst()/_wfindnext...
Add missing return value, flagged by 'make test'.
Correct version guard for WinXP minimum require...
Adjust header file definition order, to fix iss...
Fix an incorrectly typed structure member.
Fix bad typedef, per MinGW-Bug [#1529].
Add missing <shobjidl.h> and associated UUID im...