tree a1adab1eed12e9e3819812137fc08ada2b643481
parent 0c6326cc9889a93ad8a1f175ebd9ebe20d2f18a9
author Tuncer Ayaz <tuncer.ayaz@gmail.com> 1469450769 +0200
committer Tuncer Ayaz <tuncer.ayaz@gmail.com> 1470513789 +0200

Introduce and use compat random number module

In order for rebar to work with previous and current OTP releases, we
generate the rebar_rnd module on startup. rebar_rnd is generated
dynamically to make sure that we use the right random module (either
rand if available or else random). It only wraps the common subset of
the API, but that's sufficient for rebar's use.