Re: [PATCH v2 03/18] modules: add qemu-modinfo utility

[Paolo Bonzini]

On 15/06/21 15:07, Gerd Hoffmann wrote:
> > Hmm, looks like I actually need both.  Seems there is no easy way to get
> > the cflags out of a source_set to construct a cpp command line.  Pulling
> > this out of compile_commands.json with jq works though.
> Well, easy until I look at target-specific modules where the
> "source file" -> "command" mapping isn't unique any more.  Which makes
> this route less attractive ...

I was almost giving up... but it looks like the result of 
extract_all_objects(recursive: true) can be passed to custom_target(). 
Then you can match it after compile_commands.json's "output" key.

Paolo

> Any idea on getting the cflags in meson.build  Or maybe I can somehow
> ask meson to run the cpp pass only for a given source set?