Re: [Xen-devel] [XEN PATCH v2 11/12] xen/build: introduce ccflags-y and CFLAGS_$@

[Jan Beulich <jbeulich@xxxxxxxx>]

On 17.01.2020 11:53, Anthony PERARD wrote:
> We are going to want $(CFLAGS) to be static and never change during
> the build, so introduce new variables that can be use to change the
> flags of a single target or of a whole directory.

I'm again struggling with the "why": What problem is there with e.g.

CFLAGS += -fshort-wchar

in a particular Makefile? This doesn't alter the when-to-expand
aspect of $(CFLAGS) at all.

I have to admit that I'm also a little puzzled by the naming, no
matter that it's taken from Linux. It doesn't really seem to fit
CFLAGS/AFLAGS and c_flags/a_flags.

Jan

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