Re: Change a target within Makefile?

On Wed, Jul 24, 2024 at 11:18 PM Masahiro Yamada <[email protected]> wrote:
> You could do "make .foo.dtb.check" to compile foo.dtb, followed by
> the schema checking.
>
> I do not want to expose the presence of the timestamp file,
> as it is an internal implementation detail

If the only requirement is that the timestamp file is not exposed, then
why don't we introduce a phony target (similar to all, clean, install, etc)?
For example we can call the target 'schema'.
In our case we need a piece of code to let the user type
$ make schema-hello
to build hello.dtb and run a schema check.


We can do this with something along the lines of

# Prevent make from removing *.checked and *.dtb files.
.NOTINTERMEDIATE: .%.dtb.checked %.dtb

schema-%: .%.dtb.checked;
.%.dtb.checked: %.dtb
    $(info checking the schema of $*)
    @touch $@

%.dtb: %.dts
    cp $< $@

regards, Dmitry