Feature #2670
Updated by Junxiao Shi almost 9 years ago
During `./waf configure`, allow selecting a subset of tools.
For every tool, `wscript` should automatically define `--enable-X` option and `--disable-X` option, where X is the directory name for the tool.
The semantics of those options is:
* If any `--enable-`* option is used, only those tools specified by `--enable-`* options are selected.
* If no `--enable-`* option is used, all tools excepted those specified by `--disable-`* options are selected.
* It's an error to specify both `--enable-X` and `--disable-X` for tool X.
Dependency detection for deselected tools should be skipped.
Unit testing for deselected tools should not be built.