Re: Available for testing: gcc-3.3.1-1 and gcc-mingw-20030911-1

["Danny Smith" <danny_r_smith_2001@yahoo.co.nz>]

On Sat, Sep 13, 2003 at 12:43:38PM -0400, Rolf Campbell wrote:
>Christopher Faylor wrote:
>
>>On Sat, Sep 13, 2003 at 12:20:39PM -0400, Rolf Campbell wrote:
>>
>>>Is this new gcc supposed to be ABI compatible with 3.2.x?  Because I 
>>>can't link in libraries compiled with an older version of cygwin g++.
>>>
>>>/c/temp/cppunit-1.8.0/src/cppunit/TestSucessListener.cpp: undefined 
>>>reference to `___gxx_personality_v0'
>>>/c/temp/cppunit-1.8.0/src/cppunit/../../include/cppunit/TestListener.h:33: 
>>>undefined reference to `__Unwind_Resume'
>>
>>Apparently not.
>>
>Ok, let me rephrase:  Do you consider this a problem worth fixing?


gcc 3.2-3 used Dwarf2 exceptions, which worked most of the time. (In fact,
I don't recall any bug reports at all on cygwin list).  But it didn't work
with w32api callbacks, nor with some combinations of compiler switches
(notably -mcpu=i586 or -mno-accumulate-outgoing-args and
-fomit-frame-pointer).

cygwin gcc-3.3.1 uses setjmp-longjmp exception mechanism,
mingw does too and has done since gcc-3.2.1.

The two undefined references are Dwarf2 specific.  The corresponding
SjLj symbols are __gxx_personality_sj0 and  __Unwind_SjLj_Resume.

Danny

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