Unigw Merge Request #4: Linux compatibility (open)

The uri_filename::os_real_path() behaves differently under Windows and Linux: In linux there must be a filesystem object at the path being canonicalised, whereas windows has no such restriction.

This makes it impossible to install a core package into a new directory on linux but totally legal on Windows.

The difference in behaviour stems from the underlying system calls used to canonicalise the path: GetFullPathNameW on windows supports non-existent paths and the POSIX realpath() function does not.

To make this function behave the same on both systems I have added code that iteratively tries smaller and smaller sub-paths on linux until it fond one that it can canonicalise, and then re-composes the path at the end.

I'm not sure I have done this in the best way, though - someone more famiiar with your path-handling API might do a better job.

The other alternative is to to an existence check on Windows and fail if the path doesn't exist; although this would remove existing functionally on Windows and may not be a great thing to do.

[Alexis Wilke]

Wasn't this resolved?

From what I recall I applied another fix for this problem.