[FFmpeg-devel] Binary compatibility for MinGW generated dlls

[Ramiro Ribeiro Polla]

Michel Bardiaux wrote:
> Zuxy Meng wrote:
>   
>> To generate a .lib what you need only is a .def. If the .def doesn't
>> contain ordinals then the .lib can't possibly reference symbols by
>> ordinals....
>>
>>     
> I have just checked the VS documentation and you are absolutely correct: 
> the ordinals are *NOT* mandated in the .def file. Of course, without 
> them we assume the runtime linker on Windows is as fast as on Linux...
>
> So all that is needed is a wee script to remove the ordinals from the DEF.
>
>   
Better yet, bug the binutils people to add a flag to dlltool.
The ordinal is inconditionally written (src/binutils/dlltool.c:1651 on 
CVS HEAD).

Ramiro Polla