Tue Feb 5 15:50:11 EST 2019

Initial post

Posts maybe collected before this one, but this is the first
buildsys.txt post.  It is time to solve the problem.  I have suffered

'make' is not good enough.

Some problems that have come up:

- build systems should compose, i.e. export their dependencies, such
  that a partial rebuild can skip calling a "bulky" sub-build

- a "bulky" build system is one that is slow at evaluating small

- a build system should be "invertible", meaning it should support a
  fast redeployment into a running system