## To find versions of GLIBCXX supported by a standard library:
```
strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX
```

## Find versions mentioned in a binary:
```
nm BinaryName | c++filt | grep GLIBCXX | perl -pe 's/.*GLIBCXX_([\d\.]+.*)/\1/g' | sort | uniq
```