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This library implements a compatibility layer between various libc implementations.
The rationale for the library implementation is described in https://st.yandex-team.ru/IGNIETFERRO-1439.
The code is taken from multiple sources, thus both LICENSE() and VERSION() tags are not very representative.
During development one can make use of the following mapping of `OS_SDK` into glibc version.
| Ubuntu | glibc |
| ------ | ----- |
| 20.04 | 2.30 |
| 18.04 | 2.27 |
| 16.04 | 2.23 |
| 14.04 | 2.18 |
| 12.04 | 2.15 |
| 10.04 | 2.11 |
Use the following commands to update the table above:
1. `ya make util -DOS_SDK=ubuntu-xx -G | grep OS_SDK_ROOT | head -n 1`
2. `cd ~/.ya/tools/v4/$RESOURCE_ID`
3. `readelf -V $(find . -name 'libc.so.6')`
4. Take the latest version from `.gnu.version_d` section prior to `GLIBC_PRIVATE`
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