[webkit-dev] Configuring for Clang - building webkit 32-bit

[Simon Fraser]

Please file a bug requesting that build-webkit detect the versions of the tools you have installed, and give a useful error message in the case that the tools are too old.

Simon

On Jun 27, 2012, at 2:31 AM, Mark Gilbert wrote:

> Thanks to those that replied to this.
> 
> For the benefit of anyone else in this situation, here is the summary:
> 
> - build-webkit fails to GCC instead of clang if the version of the developer tools is too old
> - If you have previously installed XCode in the old /developer  folder, then you upgrade via the app store the new version is installed in /Applications
> - If you build like this it will still use the old XCode tools in /Developer (and hence fail to GCC)
> - You need to use the xcode-select -switch  instruction from the webkit page on "building" in order to tell the system to adopt the newer XCode from /Applications
> - Now if you build-webkit it will use the new tools and be happy with clang.
> 
> For those trying to build with 32-bit you can add the options to build-webkit or you can set the default using set-webkit-configuration tool to 32-bit.
> 
> now building in 32-bit with clang.  fingers crossed.........
> 
> Thanks for the help
> 
> 
>> Hi Folks.
>> 
>> I have been trying for weeks to build WebKit in 32-bit.
>> 
>> My system is a MacMini Server with 10.7.4 and latest XCode.  
>> 
>> I update via SVN then use build-webkit.  This creates a good working 64bit version.
>> 
>> However, when I use build-webkit --32-bit or   build-webkit ARCHS="i386 x86_64" ONLY_ACTIVE_ARCH=NO   I get various build failures which generally seem related to 32bit truncation of 64bit values.
>> 
>> The folks who have responded to my bug report suggest this is because my system uses GCC when running build-webkit instead of clang.
>> 
>> I wondered if someone could provide instructions on configuring this machine to use clang instead when running build-webkit.
>> 
>> Thanks
>> 
>> Mark
>> 
>> 
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