tree cbb16d1c9391b368f92d8c3d9506899e03f0bfb6
parent 3edf19faec5def1f9055e0855101b5b00aee7bc6
author Barret Rhoden <brho@cs.berkeley.edu> 1484349618 -0500
committer Barret Rhoden <brho@cs.berkeley.edu> 1484751603 -0500

Enforce AKAROS_ROOT and AKAROS_XCC_ROOT

For a while we were trying to figure out what the developer picked for
these.  Now we enforce that they are set, at least for the apps and
libraries that live under tools.

We also weren't telling anyone to install those apps/libs before make
tests.  Now that vmrunkernel uses elf headers, we need gelf.h (elfutils)
installed.

Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>