On Mon, Aug 10, 2015 at 6:55 PM, Connie Sieh <[log in to unmask]> wrote:
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>> I have installed Scientific Linux.
>>
>> I would like to use clang. I see that clang is not part of the yum
>> repository.
>>
>> I downloaded the latest Fedora zip from clang.llvm.org and installed clang
>> in /usr/local
>>
>> When I go to run clang I get an error that GLIBCXX 3.4.20 is not
>> available.
>>
>> I have found in libstdc++
>> =E2=80=8BGLIBCXX =E2=80=8B
>> 3.4 to 3.4.19, but not GLIBCXX 3.4.20
>> =E2=80=8B.=E2=80=8B
>>
>> My version of gcc installed is 4.8.3 9.3l7
>> =E2=80=8B.
>>
>> I have looked for solutions on the web and many are partial or requiring
>> complete source build of clang.
>>
>> I might be able to use a previous version or so of clang to that version
>> that wants to use GLIBCXX 3.4.19 or less, but since clang was not
>> installed
>> via yum, I'm not certain how to download grade it properly.
>>
>> Are there any recommendations from this list on how to
>> (uninstall/re-install) install clang on Scientific Linux?
>>
>> I understand that Scientific Linux is a variant of Fedora. Many of the
>> tasks recommended for Fedora apply to Scientific Linux, but I'm still lost
>> as my administration skills are being tasked.
>>
>> Thanks for the help and education.
>>
>> Keith Smith
>>
>> =E2=80=8B
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>
> If you installed Scientific Linux 6 or 7 then clang is available via the
> "epel" repo.
>
> yum --enablerepo=epel install clang

If you do 'yum install epel-release' first, epel is enabled by
default. The '--enablerepo' option should not be necessary.

Also, EPEL cannot be considered a production reliable repository. Too
many packages appear and disappear without warning to not make a local
replica of old contents.