Re: LLVM 2.6 Released / Can it be used with Xcode?
Re: LLVM 2.6 Released / Can it be used with Xcode?
- Subject: Re: LLVM 2.6 Released / Can it be used with Xcode?
- From: "M. Moore" <email@hidden>
- Date: Tue, 22 Dec 2009 10:08:50 -0800
Thank you!
On Tue, Dec 22, 2009 at 9:10 AM, Jean-Daniel Dupas
<email@hidden> wrote:
>
> Le 22 déc. 2009 à 16:56, Sean McBride a écrit :
>
>> On 10/29/09 11:03 AM, Jean-Daniel Dupas said:
>>
>>> I can't answer for the "wise" part, but it is possible.
>>> I'm using an up-to-date version of clang/llvm with Xcode, and although
>>> I'm pretty sure it's "not supported", it works quite well.
>>> llvm 2.6 is a stable released, but as clang has not really reached
>>> it's first full feature version, I prefer working with the trunk
>>> version (the LLVM and clang teams do their best to maintain a clean
>>> and working TOT).
>>>
>>> You just have to replace 2 files and 1 directory in your developer
>>> folder.
>>>
>>> /Developer/usr/bin/clang
>>> /Developer/usr/libexec/clang-cc
>>>
>>> /Developer/usr/lib/clang/
>>
>> Jean-Daniel,
>>
>> I've just had time to try this... are those really the only 3 files you
>> replaced? I download the 2.6 binaries and their distribution has the
>> usual UNIXy bin-lib-man folders. There are hundreds of files in there,
>> did you just ignore the others?
>>
>> Thanks,
>
> Yes, they are. For practical reason, llvm uses static library (see, they are all .a file in lib).
> So as clang and clang-cc are statically linked, they are autonomous and don't need any other library.
> Note that if you use the latest clang release (svn trunk), clang-cc is no longer required (it no longer exists), and you need clang binary only.
>
> The only dylib is libLTO that is used for LTO (surprising isn't it ;-)). Link Time Optimization is disabled by default and ld uses this library only if you enable LTO in Xcode. As I never managed to compile an application using LTO without getting a lots of duplicate symbol errors, I didn't bother to try to replace it with a more recent version.
>
> -- Jean-Daniel
>
>
>
>
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