Re: [Qemu-devel] [PATCH v3] qapi: Reduce Makefile boilerplate

[Yuval Shaia <yuval.shaia@oracle.com>]

On Tue, Nov 20, 2018 at 01:17:28PM +0200, Eric Blake wrote:
> Adding a new qapi module had some rather tedious repetition to
> wire it into Makefile, Makefile.objs, and .gitignore (for example,
> see commit bf42508f and its followup b61acdec). For make, add some
> indirection by taking advantage of GNU Make string processing to
> expand a list of module names into all the required artifacts, so
> that future additions of a new module need only touch the list of
> module names.  And for gitignore, use globs to cover all generated
> file names.
> 
> The list has to live in Makefile.objs, due to the way that
> our unnest-vars macro slirps in that file without remembering
> any definition of $(QAPI_MODULES) from Makefile.
> 
> Signed-off-by: Eric Blake <eblake@redhat.com>
> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
> Reviewed-by: Markus Armbruster <armbru@redhat.com>
> ---
> v3: also tweak .gitignore [Dan]
> v2: also condense Makefile.objs, prefer $(FOO:%=a%b) over
> $(patsubst %,a%b,$(FOO))
> ---

Used it to integrate a new QMP message for pvrdma device and it indeed
makes effort minimal.

So:

Tested-by: Yuval Shaia <yuval.shaia@oracle.com>

Thanks,
Yuval

>  Makefile      | 192 ++++++--------------------------------------------
>  Makefile.objs |  75 ++------------------
>  .gitignore    |  72 ++-----------------
>  3 files changed, 34 insertions(+), 305 deletions(-)
>