Re: pgsql: ecpg: Output dir, source dir, stamp file argument for preproc/*.

I wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
>> Grepping for 'no warnings' shows that check_rules.pl has the same
>> issue. Perhaps worth fixing at the same time, given how closely related they
>> are?

> Ah, I didn't think to look around. I'll see what I can do there.

Oh, that one's only hiding *one* sloppy spot. However, while testing
it I realized that the Makefile rule has two serious deficiencies:

* check_rules.pl not listed as a prereq, so nothing happens if you
change it and say "make".

* check_rules.pl should be run first. As-is, if it complains,
preproc.y has already been updated and so another run will succeed.

You might wanna check your meson conversion for the same bugs.

regards, tom lane