Re: [PATCH 2/2] kbuild: add shell cache

From: Michal Marek
Date: Fri Jul 22 2016 - 07:56:13 EST

On 2016-06-27 20:28, Rabin Vincent wrote:
> Running make results in over 40 invocations of the compiler just during
> processing of the Makefile, before any actual rules are run.
> To reduce this overhead, cache the results of $(shell) calls to the
> compiler.

How do you detect when the compiler gets updated?