[m-rev.] for review: extend the use of library grade install checks

[Julien Fischer]

On Sat, 14 Sep 2019, Julien Fischer wrote:

> Extend the use of library grade install checks.
>
> Perform library grade install checks when the compiler is invoked on a single
> source file linked target; previously we only performed this checks when 
> using mmc --make.

In the absence of any review comments, I will commit this later today.

Julien.