tree af7c4fb571c9cde72a803daeae8f3352b3ddf1d1
parent e3123e0926545acd24d932c15049a878167a6e2e
author Josh Conner <joshconner@google.com> 1484078494 -0800
committer Josh Conner <joshconner@google.com> 1484078494 -0800

Additional sysroot checks.

Make sure that a sysroot has been specified when building for
an OS that isn't the same as the host OS.

Change-Id: Iaebdb6149d3444ff0f17cc8bd8926abd14d6d569