that allows us to find the errors without scrolling through warnings.
here the patch (generated by 'git diff').
This is a good idea (well, sort of, most of us treat warnings as errors anyway), but I think it would be even better to have an option (something like "Hide warnings") as I do not like putting them out of context.
In either case, for now I am adding to redmine, I do not want any changes until next release.
In my PC, in some .var files, in some cases, the path until /upp folder appeared in lower case, when the real path has letters in upper case.
Curiously, although the warning is devoted to protect Linux like OS, the same set of folders is compiled using a Linux virtual machine without warnings....
From now on I will report warnings in U++ sources.