| STRINGS | |
| ------- | |
| Enumerate possible ``STRING`` entry values for GUI selection. | |
| For cache entries with type ``STRING``, this enumerates a set of values. | |
| CMake GUIs may use this to provide a selection widget instead of a | |
| generic string entry field. This is for convenience only. CMake does | |
| not enforce that the value matches one of those listed. |