Re: Postgres Windows build system doesn't work with pythoninstalled in Program Files

В Fri, 1 May 2020 17:52:15 +0900
Michael Paquier <michael@paquier.xyz> пишет:

> On Thu, Apr 30, 2020 at 03:06:08PM +0300, Victor Wagner wrote:
> > Fix is very simple, see attach.
> >
> > Patch is made against REL_12_STABLE, but probably applicable to
> > other versions as well.
>
> Indeed, thanks.
>
> >          my $pythonprog = "import sys;print(sys.prefix);"
> >            .
> > "print(str(sys.version_info[0])+str(sys.version_info[1]))"; my
> > $prefixcmd =
> > -          $solution->{options}->{python} . "\\python -c
> > \"$pythonprog\"";
> > +        '"' . $solution->{options}->{python} . "\\python\"
> > -c \"$pythonprog\""; my $pyout = `$prefixcmd`;
> >          die "Could not query for python version!\n" if $?;
> >          my ($pyprefix, $pyver) = split(/\r?\n/, $pyout);
>
> This reminds me of ad7595b.  Wouldn't it be better to use qq() here?

Maybe. But probably original author of this code was afraid of using
too long chain of ->{} in the string substitution.

So, I left this style n place.

Nonetheless, using qq wouldn't save us from doubling backslashes.

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