https://issues.dlang.org/show_bug.cgi?id=24584

          Issue ID: 24584
           Summary: [phobos] `make unittest` should not rerun tests
                    unnecessarily
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: nick@geany.org

Currently it seems to run every test, regardless of whether relevant Phobos dependencies have changed. This makes it a very slow process to find & fix all errors when introducing a dmd error.

Alternatively, having some way of running all tests despite any failing tests would be useful.

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