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https://issues.apache.org/jira/browse/AVRO-1132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Laurent Moss updated AVRO-1132:
-------------------------------

    Attachment: AVRO-1132.diff

This patch fixes the issue for me, by omitting the following function 
declaration and definition on Windows: 
template<class BufferType>
inline void toIovec(BufferType &buf, std::vector<struct iovec> &iov) 
                
> Build failing on MSYS/MinGW due to missing struct iovec
> -------------------------------------------------------
>
>                 Key: AVRO-1132
>                 URL: https://issues.apache.org/jira/browse/AVRO-1132
>             Project: Avro
>          Issue Type: Bug
>          Components: c++
>    Affects Versions: 1.7.1
>         Environment: Windows XP Professional 32-bit SP3, MSYS, MinGW GCC 4.5.1
>            Reporter: Laurent Moss
>              Labels: build
>         Attachments: AVRO-1132.diff
>
>
> Avro C++ fails to build on MSYS with MinGW GCC due to references to 
> undeclared struct iovec:
> In file included from C:/workspace/avro-cpp/api/buffer/BufferReader.hh:22:0,
>                  from C:/workspace/avro-cpp/api/Reader.hh:30,
>                  from C:/workspace/avro-cpp/api/ResolverSchema.hh:28,
>                  from c:/workspace/avro-cpp/impl/ResolverSchema.cc:20:
> C:/workspace/avro-cpp/api/buffer/Buffer.hh: In function 'void 
> avro::toIovec(BufferType&, std::vector<avro::iovec>&)':
> C:/workspace/avro-cpp/api/buffer/Buffer.hh:517:15: error: invalid use of 
> incomplete type 'struct avro::iovec'
> C:/workspace/avro-cpp/api/buffer/Buffer.hh:511:57: error: forward declaration 
> of 'struct avro::iovec'
> C:/workspace/avro-cpp/api/buffer/Buffer.hh:518:15: error: invalid use of 
> incomplete type 'struct avro::iovec'
> C:/workspace/avro-cpp/api/buffer/Buffer.hh:511:57: error: forward declaration 
> of 'struct avro::iovec'
> make[2]: *** [CMakeFiles/avrocpp_s.dir/impl/ResolverSchema.cc.obj] Error 1
> make[1]: *** [CMakeFiles/avrocpp_s.dir/all] Error 2
> make: *** [all] Error 2

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