The env variable ROBOTOLOGY_SUPERBUILD_SOURCE_DIR will be used instead of ROBOTOLOGY_SUPERBUILD_ROOT to point to the robotology-superbuild's source directory

[traversaro]

During this weekend (16/17 March) the robotology/robotology-superbuild#185 PR will be merged in robotology-superbuild's master branch, changing all the documentation and script to define and refer to the enviroment variable that points to the location of the robotology-superbuild as ROBOTOLOGY_SUPERBUILD_SOURCE_DIR instead of ROBOTOLOGY_SUPERBUILD_ROOT.

The complete rationale is mentioned in robotology/robotology-superbuild#154 , but in a nutshell since CMake 3.12 the enviromental variables ending in _ROOT have a specific meaning related to CMake, and we do not want to confuse the users by using a variable that ends with _ROOT in another context. The choice of changing directly the variable instead of going through a deprecation phase is due to the fact that it is not possible (as far as we know) to "deprecate" an enviroment variable, i.e. to emit a warning message whenever the variable is used.

As long as you did not referred explicitly to ROBOTOLOGY_SUPERBUILD_ROOT env variable, no changes should be necessary in your setup.

For any question, feel free to ask in this issue, thanks!

@robotology/all-robotology-developers

[traversaro]

The PR robotology/robotology-superbuild#185 was merged. If you have any problem, please open an issue in the https://github.com/robotology/robotology-superbuild repo.