Re: failing to build preproc.c on solaris with sun studio

On Sun, Sep 04, 2022 at 10:55:43AM -0400, Tom Lane wrote:
> There'd need to be a separate discussion around how much to
> encourage buildfarm owners to add --with-ecpg to their
> configurations.  One thing that would make that easier is
> adding --with-ecpg as a no-op option to the back branches,
> so that if you do want it on it doesn't have to be done
> with a branch-specific test.

That would not make it easier.  "configure" doesn't fail when given unknown
options, so there's already no need for a branch-specific test.  For example,
topminnow has no problem passing --with-llvm on branches lacking that option:
https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=topminnow&dt=2022-08-27%2005%3A57%3A45&stg=configure