[cfe-dev] Help with compiling code with libcxx

[Ashok Nalkund]

On 6/16/2012 7:35 AM, Konstantin Tokarev wrote:
>
>
> 16.06.2012, 03:50, "Ashok Nalkund"<ashoknn at qualcomm.com>:
>> On 6/15/2012 4:45 PM, Richard Smith wrote:
>>
>>>   On Fri, Jun 15, 2012 at 4:28 PM, Dmitri Gribenko<gribozavr at gmail.com>    wrote:
>>>>   On Fri, Jun 15, 2012 at 4:22 PM, Ashok Nalkund<ashoknn at qualcomm.com>    wrote:
>>>>>   Any info on compiling Qt (4.8.2) with clang&    libc++ ? I couldnt find
>>>>>   replacements for things like "__gnu_cxx::__exchange_and_add()" being used in
>>>>>   Qt.
>>>>   Clang has C11 atomics:
>>>>   http://clang.llvm.org/docs/LanguageExtensions.html#__c11_atomic
>>>   It also supports the full set of GNU atomic builtins, if using
>>>   _Atomic(...) types is impractical:
>>>
>>>   http://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/_005f_005fatomic-Builtins.html#_005f_005fatomic-Builtins
>>
>> If I understand correctly, you are suggesting modifying Qt code and
>> replace the __gnu_cxx::__exchange_and_add() and similar calls with
>> libc++ variants, right?
>
> If you are about QtWebKit code, feel free to just disable GCC clause of #ifdef
> You may loose performance of atomiv operations in WebKit though.
>

It was in script, I've disabled script for now (our code uses the script 
functionality but I'll see how this goes).

thanks