# module `concrete.compiler.utils`
Common utils for the compiler submodule.
**Global Variables**
---------------
- **ACCEPTED_NUMPY_UINTS**
- **ACCEPTED_INTS**
- **ACCEPTED_TYPES**
---
## function `lookup_runtime_lib`
```python
lookup_runtime_lib() → str
```
Try to find the absolute path to the runtime library.
**Returns:**
- `str`: absolute path to the runtime library, or empty str if unsuccessful.