libreoffice build error

[Jung-uk Kim]

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On 2013-09-18 13:20:27 -0400, Jung-uk Kim wrote:
2013년  9월 18일 13:20, Jung-uk Kim 쓴 글:> On 2013-09-18 12:39:46
- -0400, David Chisnall wrote:
>> On 18 Sep 2013, at 16:26, Tijl Coosemans <tijl at freebsd.org>
>> wrote:
> 
>>> On Tue, 17 Sep 2013 21:04:14 -0400 Jung-uk Kim wrote:
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>>>> 
>>>> On 2013-09-17 13:24:41 -0400, Jung-uk Kim wrote:
>>>>> I am still working on libc++ issues but it is much more 
>>>>> complicated. :-(
>>>> 
>>>> I fixed almost everything except for exception handling 
>>>> issues. Unfortunately, libc++/libcxxrt's exception handling
>>>> is not 100% compatible with libstdc++'s and I couldn't find
>>>> a proper fix. :-(
>>>> 
>>>> Basically, C++/UNO bridge for LibreOffice/OpenOffice does
>>>> some clever hacks, somewhat similar to the example on this
>>>> blog page:
>>>> 
>>>> http://zbigg.blogspot.com/2009/03/catch-on-g.html
>>> 
>>> The definition of struct __cxa_exception doesn't match the one 
>>> in /usr/include/c++/v1/cxxabi.h.  There's an extra field at
>>> the start in the __LP64__ case: uintptr_t referenceCount.
> 
>> This field is present in newer versions of the ABI spec and is
>> also there in new versions of libsupc++.  It's required for
>> implementing C++11 dependent exceptions.
> 
>> It shouldn't matter for code that doesn't allocate the structure 
>> (and nothing outside of libsupc++ / libcxxrt should be
>> allocating them), because these structures are always passed
>> around by pointers to their ends (where the _Unwind_Exception
>> structure lives).
> 
> Ah, I see.  Now I wrote a proper fix and it looks very promising.
> :-)

Committed:

http://svnweb.freebsd.org/changeset/ports/327589

Thanks!

Jung-uk Kim

* PS: IMHO, the ABI compatibility issue must be fixed before 10.0.
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