https://issues.dlang.org/show_bug.cgi?id=19138

          Issue ID: 19138
           Summary: std.uuid.randomUUID should not depend on
                    std.random.Random being Mt19937
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: n8sh.secondary@hotmail.com

Right now `std.uuid` has a static assert that `std.random.Random` is `Mt19937`. This is contrary to the public documentation of `std.random.Random`:

---
The "default", "favorite", "suggested" random number generator type on the current platform. It is an alias for one of the previously-defined generators. You may want to use it if (1) you need to generate some nice random numbers, and (2) you don't care for the minutiae of the method being used.
---

Depending on implementation details of another module is brittle and may lead others to believe they can make the same assumption if even other Phobos modules assumes it.

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