[csw-maintainers] Undefined symbol __sync_fetch_and_add_4.

[Dagobert Michelsen]

Hi Roger,

Am 30.03.2010 um 06:26 schrieb Roger Håkansson:
> On 2009-12-22 11:25, Maciej (Matchek) Blizinski wrote:
>> 2009/11/8 Trygve Laugstøl<trygvis at opencsw.org>:
>>> I'm trying to build freehdl on build8s, but when it's linking the  
>>> final
>>> binary I'm getting an error about a missing symbol  
>>> "__sync_fetch_and_add_4"
>>>
>>> This seems to be a function that use atomic instructions that's  
>>> not on i386
>>> and sparc 8 so i686 has to be used. I assume the problem is  
>>> similar on
>>> sparc, but I have no idea which flags to use. Does anyone know?
>>>
>>> http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Atomic-Builtins.html#Atomic-Builtins
>>
>> I just saw the same problem:
>>
> ...
>> Undefined                       first referenced
>>  symbol                             in file
>> __sync_fetch_and_add_4
>> /home/maciej/src/opencsw/pkg/googletest/trunk/work/build-isa- 
>> sparcv8/gtest-1.4.0/lib/.libs/libgtest.so
>
> I've stumbled upon the same problem, but also found the way to solve  
> it.
>
> Instead of having -mcpu=v8 as a compiler option, replacing it with - 
> m32 will solve it.

Was this with GAR? Then I would suggest we change the default to the  
most
sane value giving the least troubles.


Best regards

   -- Dago