[PATCH v2 1/2] widl: Define _WIN64 for 64-bit targets.

[Bernhard Übelacker]

Am 23.12.21 um 09:58 schrieb Alexandre Julliard:
> Bernhard Übelacker <bernhardu at mailbox.org> writes:
> 
>> @@ -849,6 +849,8 @@ int main(int argc,char *argv[])
>>   
>>     add_widl_version_define();
>>     wpp_add_cmdline_define("_WIN32=1");
>> +  if (pointer_size == 8)
>> +    wpp_add_cmdline_define("_WIN64=1");
> 
> You can't use #ifdef _WIN64 in idl files, this would make the generated
> headers platform-dependent.
> 

Thanks for looking into it.
I guess I could then delay this decision in the idl file like this:

cpp_quote("#ifdef _WIN64")
cpp_quote("typedef long ADO_LONGPTR;")
cpp_quote("#else")
cpp_quote("typedef __int64 ADO_LONGPTR;")
cpp_quote("#endif")

But then the type is not known to widl:

.../include/msado15_backcompat.idl:639: error: type 'ADO_LONGPTR' not found in global namespace

How has such a type made known to widl?

Kind regards,
Bernhard