[dpdk-dev] [PATCH] devtools: fix check of ccache for meson build

[Bruce Richardson]

On Fri, Sep 13, 2019 at 09:34:25AM +0200, Thomas Monjalon wrote:
> The meson build test fails if ccache is not available.
> The use of ccache must be optional.
> And if used, the compiler to check is the last word of $CC.
> 
> Fixes: e0ae780e6569 ("devtools: test compiler availability only once")
> 
> Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
> 
> ---
> 
> This script is failing now because a real check of ccache availability
> is done in commit e0ae780e6569.
> It was not failing before, which means $CC is not used by meson?

$CC is used, otherwise we wouldn't be able to do any clang builds. :-)

I think what used to happen with earlier versions of the script was that
large chunks of the builds used to be skipped if ccache wasn't available,
i.e. I think it used to just do the "default" build and skip the regular
clang/gcc builds as those were where we checked for compiler presence.
[NOTE: it's been a while since I ran this on a system without ccache and I
never got to fixing it when I did encounter one - installing ccache was
always the easier step. :-)]