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if anyone could give a beginner some help on gcc version issue?

I met the issue on "version GLIBCXX_3.4.20' not found". After I followed the link: How to Install gcc 5.3 with yum on CentOS 7.2? I met extra issues as below:

scl enable devtoolset-7 bash
git: relocation error: libc.so.6: symbol _dl_starting_up, version GLIBC_PRIVATE not defined in file ld-linux-x86-64.so.2 with link time reference
Vimanyu
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vicky
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2 Answers2

17

if anyone could give a beginner some help on gcc version issue?

Your problem has nothing to do with any GCC versions.

git: relocation error: libc.so.6: symbol _dl_starting_up, ...

This error most likely means that you are trying to use something other than the system libc.so.6 (perhaps by pointing LD_LIBRARY_PATH to directory that contains a copy of libc.so.6 from a different system).

Don't do that: it doesn't work. Using alternate GLIBC version is possible, but complicated. This answer provides some ways to do that.

Employed Russian
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    It is false that it does not work. Several SDKs do that routinely in hundreds of production machines. GLIBC has versioned symbols, so you have graceful errors like the ones reported. I do not downvote because the answer is mostly correct, except for the "Don't do that: it doesn't work." – Paulo Neves Mar 09 '21 at 10:11
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Solution is as follows:

  1. Create a local installation path mirroring / (root path) and containing usr/lib64 and a symlink to usr/lib64 at the same level as usr
  2. Compile and install GLibC locally (i.e. configure --prefix=/local/installation/path (/local/installation/path contains usr and lib64 symlink)
  3. Install other necessary dependencies

  4. Invoke your application by as follows

    /local/installation/path/usr/lib/ld-linux-${arch}.so.${version} \
  --library-path /local/installation/path/usr/lib:/local/installation/path/usr/lib64:... \
  Your-Bin-Name \
  Your-Bin-CLI-Options

    NOTE: Add additional paths as needed, separating each with a colon

Sam
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