Re: [PATCH] selftests, x86: fix how check_cc.sh is being invoked

On Fri, 25 Feb 2022 13:15:43 +0000 Guillaume Tucker guillaume.tucker@collabora.com wrote:

Add quotes around $(CC) when calling check_cc.sh from a Makefile to pass the value as a single argument to the script even if it has several words such as "ccache gcc". Conversely, remove quotes in check_cc.sh when calling $CC to make it a command with potentially several arguments again.

This changelog describes the fix, but it fails to describe the problem which the patch is fixing!

Presumably, we're hitting some form of runtime failure under undescribed circumstances when running selftests. But that's just me reverse-engineering the patch description. And me reverse-engineering stuff is a gloriously unreliable thing. Please spell out the problem.