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Created attachment 1667191 [details]
File to reproduce problem

Description of problem:
libatomic.a, libatomic.so is missing for gcc-toolset-9 (x86_64)

Version-Release number of selected component (if applicable):
gcc (GCC) 9.1.1 20190605 (Red Hat 9.1.1-2)

How reproducible:
Always.

Steps to Reproduce:
1. See attached file "atomic_test.cpp"
2. Try to compile with system-compiler: g++ atomic_test.cpp -latomic (works)
3. Try to compile with gcc-toolset-9: scl enable gcc-toolset-9 'g++ atomic_test.cpp -latomic'

Actual results:
Compiling with System-Compiler works. Compiling with gcc-toolset-9 gives error: /opt/rh/gcc-toolset-9/root/usr/bin/ld: cannot find -latomic

Expected results:
The code should also compile and link with the gcc-toolset-9.

Additional info:
When I create a symlink in /opt/rh/gcc-toolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/ to the file from the system-compiler it works.
These are the command I executed for my workaround:
sudo ln -s /usr/lib/gcc/x86_64-redhat-linux/8/libatomic.so /opt/rh/gcc-toolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/libatomic.so
sudo ln -s /usr/lib/gcc/x86_64-redhat-linux/8/libatomic.a /opt/rh/gcc-toolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/libatomic.a

This happens because you don't have gcc-toolset-9-libatomic-devel installed.  But I see that that package wasn't shipped for some reason, which is a problem that needs to be fixed, sorry about that.

Clearing needinfo.

Any ETAs on when is this landing on UBI8 images?

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1683