howto fix bug 13462

Reece Dunn msclrhd at
Sun Sep 28 14:47:24 CDT 2008

2008/9/28 Louis Lenders <xerox_xerox2000 at>:
>> > +//#include "ctxtcall.h"
>> Please resend the patch adding the IDL file for this generated file
>> and get it in before sending this patch adding the tests.
> Hi Rob, thanks very much for the comments. I'll do the above , but i have
> problems when I uncomment the above include, i get:
> compobj.c:(.text+0x394b): undefined reference to `IID_IContextCallback'
> /usr/bin/ld: compobj.o: relocation R_386_GOTOFF against undefined hidden symbol
> `IID_IContextCallback' can not be used when making a shared object
> /usr/bin/ld: final link failed: Bad value
> collect2: ld returned 1 exit status
> winegcc: gcc failed
> make[2]: *** [] Error 2
> Adding the two lines below
> #define INITGUID
> #include "guiddef.h"
> fixes the compiler error, but i have the feeling something is wrong with my
> setup or so, or is this a "normal" error?

You'll need to add the .lib file that contains the IContextCallback GUID.

MSDN suggests that this is in ole32.lib
(, so
referencing that should fix it.

If it does not, you'll need to pull in those two lines above.

NOTE: this should be confirmed by building the test with the Windows SDK.

- Reece

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