[llvm-dev] The clang for centos6 are need GLIBC_2.14, but we only have GLIB 2.12 by default.

[罗勇刚(Yonggang Luo) via llvm-dev]

Hell, Brian, I found a way to install Gcc 5.3 on CentOS 6 without the need
to building it from source. You may try it on CentOS 6.0
That's makes clang/llvm won't depends on the newer version of glibc 2.14
The instruction:

vim /etc/yum.repos.d/llvm.repo

The content:
```
[sclo]
name=SCLO
baseurl=http://mirror.centos.org/centos/6/sclo/x86_64/rh/
gpgcheck=0
enabled=1
```
Installation step:
```
yum clean all
yum list
echo y | yum install devtoolset-4
```


On Wed, Jun 29, 2016 at 1:15 AM, Brian Cain <brian.cain at gmail.com> wrote:

> On Tue, Jun 28, 2016 at 11:50 AM, 罗勇刚(Yonggang Luo) <luoyonggang at gmail.com
> > wrote:
>
>> So CentOS before 6.7 is not an option after all?
>> Is that possible to use clang on CentOS 6.6 and before?
>>
>>
> Not with these binaries, unless you can update your libc/libstdc++.  In
> the general sense -- yes, it's possible if you build from source.  There's
> a couple of potential approaches: build against libc++, build against newer
> libstdc++.  If you're more adventurous you could also try building with
> ellcc.  That one requires patches but will yield a statically linked binary.
>
> I built clang trunk/tip a few weeks ago on CentOS 6.0.  But I first built
> the gcc6 suite, then used it to build clang.  I believe clang 3.4.2 is the
> latest version that supports the older libstdc++.  I ran into challenges
> with using clang so I stuck with gcc6.  The resulting binaries depend on
> the gcc6 libraries so I can't really use this procedure to make a new
> official release for centos.  If it's helpful I can publish the steps I
> used, but really just followed the build instructions.
>
> -Brian
>



-- 
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo
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