Re: [PATCH 8/8] configure: automatically parse command line for meson -D options

[Paolo Bonzini]

On 23/01/21 04:30, 罗勇刚(Yonggang Luo) wrote:
>  > We could and I did it in the first version. However it's ugly that 
> the user has to use --python on some setups in order to get a full help 
> message.
>
>    Yeap, but finally configure should gone, so I think --python are 
> acceptable by user, just need make sure to be noticed when the default 
> python
> are not python3

When configure will be gone, these 200 lines of Perl will disappear with 
it, so we don't have to think for future users and developers, but for 
the present.

I don't expect configure or Makefile to go away completely, because for 
example things such as "git submodule" handling are easier to do in the 
shell.  However, we also need to evaluate what's the road to a minimal 
configure (just like our Makefile is pretty minimal, only tests/tcg 
still has lots of build logic).  In that respect, automatic parsing 
command line simplifies moving things from configure to meson, and that 
is true no matter what language the parser is written in.

(BTW, I'm not such a Perl fan.  I have only ever written like 3 or 4 
programs in Perl).

Paolo