| ## `dep.get_variable(varname)` | |
| `dep.get_variable()` now has `varname` as first positional argument. | |
| It is used as default value for `cmake`, `pkgconfig`, `configtool` and `internal` | |
| keyword arguments. It is useful in the common case where `pkgconfig` and `internal` | |
| use the same variable name, in which case it's easier to write `dep.get_variable('foo')` | |
| instead of `dep.get_variable(pkgconfig: 'foo', internal: 'foo')`. | |