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Re: "Future" of llvm-gcc with regards to support
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Re: "Future" of llvm-gcc with regards to support


  • Subject: Re: "Future" of llvm-gcc with regards to support
  • From: Jean-Daniel Dupas <email@hidden>
  • Date: Sat, 25 Feb 2012 11:49:06 +0100

Le 25 févr. 2012 à 00:49, Salman Khilji a écrit :

> Rumor has it that "people familiar with the matter" said Apple will kill in Xcode 4.4.
>
> llvm-gcc was already a deal breaker for me.  I maintain (or not?) build scripts that allow one to compile Code Sourcery g++ for embedded Linux to natively run on Mac OS X.  Here are the details:
>
> https://github.com/UnhandledException/ARMx/wiki/Sourcery-G++-Lite-for-ARM-GNU-Linux-(2009q3-67)-for-Mac-OS-X
>
> I am assuming that gcc likes to be compiled only with gcc (may be someone has tried clang to compile gcc?, don't know).
>
> The XCode 4.0 (or 4.1?) shipped with a version of llvm-gcc that failed to compile gcc and crashed with an out-of-memory error---yeah, I know, I should have filed a bug report, but I didn't :-(  I had to specifically set my compiler to point to gcc-4.2 to get things to compile correctly.  Now that gcc is gone, and only llvm-gcc and clang are available, I am too scared to even try.
>
> When llvm-gcc is finally gone, it will make it even harder for me to compile a cross toolchain on the Mac.  With llvm-gcc around, I hope to be able to update my scripts someday and publish it for Lion (the current ones are for SL).  With only clang, I _may_ be able to get the toolchain to compile _only_ if I am willing to lose all of my hair over it!

clang move very fast, and it is actually better than llvm-gcc IMHO.
If you have trouble compiling gcc using clang, fill a bug report. clang should be able to compile it (and AFAIK, it compiles recent gcc versions without problem).

>
>
> On Feb 24, 2012, at 11:03 AM, Brad Oliver wrote:
>
>> Hi all,
>>
>> As part of our migration to Clang, I'm curious what the state of llvm-gcc is in terms of bugfixes and support.
>>
>> For example, has llvm-gcc seen any love between Xcode 4.0 and Xcode 4.3 or is it basically frozen in time from a few years ago? Doing a llvm-gcc -v, I see this:
>>
>> Xcode 4.3: LLVM build 2336.1.00
>>
>> Xcode 4.0.2 under 10.6.8: LLVM build 2335.9
>>
>> That's not a huge difference. I realize Clang is the One True Way, so my curiosity is mainly about coping with codegen bugs that we've hit in llvm-gcc and planning a way around that.
>>
>> If the answer is "llvm-gcc will not see fixes and has not since Xcode 4.0; forge ahead with Clang", then that's good enough.
>>
>> --
>> Brad Oliver
>> email@hidden
>>
>>
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-- Jean-Daniel





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  • Follow-Ups:
    • Re: "Future" of llvm-gcc with regards to support
      • From: Andreas Grosam <email@hidden>
References: 
 >"Future" of llvm-gcc with regards to support (From: Brad Oliver <email@hidden>)
 >Re: "Future" of llvm-gcc with regards to support (From: Salman Khilji <email@hidden>)

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