make crosstest link error

[Francois Gouget]

Running make crosstest in dlls/mlang/tests I get:

i586-mingw32msvc-gcc mlang.cross.o  testlist.cross.o -o
mlang_crosstest.exe -lole32 -lgdi32 -lkernel32 -lntdll -luuid
mlang.cross.o(.text+0x469e): In function `func_mlang':
/home/fgouget/wine/dlls/mlang/tests/mlang.c:618: undefined
reference to `IID_IMultiLanguage2'
mlang.cross.o(.text+0x46b5):/home/fgouget/wine/dlls/mlang/tests/mlang.c:618:
undefined reference to `CLSID_CMultiLanguage'
make: *** [mlang_crosstest.exe] Error 1

I have checked out the mingw-w32api-2.5-8hl.i586.rpm package from
http://mirzam.it.vu.nl/mingw/ but unfortunately I still get the error.
> From what I can see, these GUIDs should be defined in libole32.a.

So I guess the mingw-w32api package is in for an update...