[boost] [graph][graph_parallel][disjoint_sets] Of dependencies and "pending" libraries.

Subject: [boost] [graph][graph_parallel][disjoint_sets] Of dependencies and "pending" libraries.
From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2018-04-21 13:08:56

In the process of creating Conan packages I ran into the rather strange
"disjoint_sets" library. It's a library that has been "pending" for 18
years, AFAICT. I don't know what a pending status means for this. But for
creating modular packages it means it's a giant PITA to deal with the the
interdependencies of "disjoint_sets", "graph", and "graph_parallel". What I
want to know is:

1. What is this hidden "disjoint_sets" library/module that only has two
headers?
2. Why isn't "disjoint_sets" in the "graph" library tree, especially given
that it's not an official library (AFAICT)?
3. Why is "graph_parallel" not in the "graph" library also?

-- 
-- Rene Rivera
-- Grafik - Don't Assume Anything
-- Robot Dreams - http://robot-dreams.net