llvm dev - Sep 2010 - [LLVMdev] GLIBCXX_3.4.9 not found

Hi all,

I am really stumped on this problem. I googled and could not find any 
solution. Here is the problem. I compiled and installed 
glibc-2.5-20090518 in a local directory with gcc version 4.1.2.  I 
compiled glibc-2.5 because I wanted to test glibc-2.5 on gcc first 
llvm-gcc. However, after I installed glibc, llvm-gcc does not work any 
more. It reported this error message:

/root/tools/llvm/llvm-gcc/install/bin/../libexec/gcc/i686-pc-linux-gnu/4.2.1/cc1:
/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by 
/root/tools/llvm/llvm-gcc/install/bin/../libexec/gcc/i686-pc-linux-gnu/4.2.1/cc1)


Generally, it means that the GLIBCXX_3.4.9 does not work with 
libstdc++.so.6. I did not install glibc in /usr/lib at all.  Any advice 
will be appreciated. Thanks a lot in advance.

Bin
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On Fri, 24 Sep 2010 10:20:42 -0400
Bin Zeng <ezengbin at gmail.com> wrote:
>   Hi all,
> 
> I am really stumped on this problem. I googled and could not find any 
> solution. Here is the problem. I compiled and installed 
> glibc-2.5-20090518 in a local directory with gcc version 4.1.2.  I 
> compiled glibc-2.5 because I wanted to test glibc-2.5 on gcc first 
> llvm-gcc. However, after I installed glibc, llvm-gcc does not work
> any more. It reported this error message:
> 
>
/root/tools/llvm/llvm-gcc/install/bin/../libexec/gcc/i686-pc-linux-gnu/4.2.1/cc1:
> /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required
> by
/root/tools/llvm/llvm-gcc/install/bin/../libexec/gcc/i686-pc-linux-gnu/4.2.1/cc1)
> 
Did you overwrite your /usr/lib/libstdc++.so.6?
As the message says libstdc++ must be at least 3.4.9. What version is
it?

Some distributions have the habit of using an
ancient /usr/lib/libstdc++, and putting the correct one
in /usr/lib/gcc/.../

Best regards,
--Edwin